staging: comedi: vmk80xx: consistently use the same local var names
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Wed, 6 Feb 2013 00:20:58 +0000 (17:20 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 6 Feb 2013 02:07:10 +0000 (18:07 -0800)
Rename some of the local variables used in this driver to make the
code easier to maintain and understand.

s/udev/usb the usb_device that the comedi_driver is attached to
s/dev/devpriv the private data of the comedi_device
s/cdev/dev the comedi_device

Also, use some local variables in a couple of the functions to tidy
up the code a bit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/vmk80xx.c

index a145286..76b99ad 100644 (file)
@@ -196,7 +196,7 @@ static const struct vmk80xx_board vmk80xx_boardinfo[] = {
 };
 
 struct vmk80xx_private {
-       struct usb_device *udev;
+       struct usb_device *usb;
        struct usb_interface *intf;
        struct usb_endpoint_descriptor *ep_rx;
        struct usb_endpoint_descriptor *ep_tx;
@@ -221,7 +221,8 @@ static DEFINE_MUTEX(glb_mutex);
 
 static void vmk80xx_tx_callback(struct urb *urb)
 {
-       struct vmk80xx_private *dev = urb->context;
+       struct vmk80xx_private *devpriv = urb->context;
+       unsigned long *flags = &devpriv->flags;
        int stat = urb->status;
 
        if (stat && !(stat == -ENOENT
@@ -229,17 +230,18 @@ static void vmk80xx_tx_callback(struct urb *urb)
                dbgcm("comedi#: vmk80xx: %s - nonzero urb status (%d)\n",
                      __func__, stat);
 
-       if (!test_bit(TRANS_OUT_BUSY, &dev->flags))
+       if (!test_bit(TRANS_OUT_BUSY, flags))
                return;
 
-       clear_bit(TRANS_OUT_BUSY, &dev->flags);
+       clear_bit(TRANS_OUT_BUSY, flags);
 
-       wake_up_interruptible(&dev->write_wait);
+       wake_up_interruptible(&devpriv->write_wait);
 }
 
 static void vmk80xx_rx_callback(struct urb *urb)
 {
-       struct vmk80xx_private *dev = urb->context;
+       struct vmk80xx_private *devpriv = urb->context;
+       unsigned long *flags = &devpriv->flags;
        int stat = urb->status;
 
        switch (stat) {
@@ -257,8 +259,8 @@ static void vmk80xx_rx_callback(struct urb *urb)
 
        goto exit;
 resubmit:
-       if (test_bit(TRANS_IN_RUNNING, &dev->flags) && dev->intf) {
-               usb_anchor_urb(urb, &dev->rx_anchor);
+       if (test_bit(TRANS_IN_RUNNING, flags) && devpriv->intf) {
+               usb_anchor_urb(urb, &devpriv->rx_anchor);
 
                if (!usb_submit_urb(urb, GFP_KERNEL))
                        goto exit;
@@ -270,20 +272,21 @@ resubmit:
                usb_unanchor_urb(urb);
        }
 exit:
-       clear_bit(TRANS_IN_BUSY, &dev->flags);
+       clear_bit(TRANS_IN_BUSY, flags);
 
-       wake_up_interruptible(&dev->read_wait);
+       wake_up_interruptible(&devpriv->read_wait);
 }
 
-static int vmk80xx_check_data_link(struct vmk80xx_private *dev)
+static int vmk80xx_check_data_link(struct vmk80xx_private *devpriv)
 {
+       struct usb_device *usb = devpriv->usb;
        unsigned int tx_pipe;
        unsigned int rx_pipe;
        unsigned char tx[1];
        unsigned char rx[2];
 
-       tx_pipe = usb_sndbulkpipe(dev->udev, 0x01);
-       rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81);
+       tx_pipe = usb_sndbulkpipe(usb, 0x01);
+       rx_pipe = usb_rcvbulkpipe(usb, 0x81);
 
        tx[0] = VMK8061_CMD_RD_PWR_STAT;
 
@@ -292,22 +295,23 @@ static int vmk80xx_check_data_link(struct vmk80xx_private *dev)
         * running and the data link between IC3 and
         * IC6 is working properly
         */
-       usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL, dev->ep_tx->bInterval);
-       usb_bulk_msg(dev->udev, rx_pipe, rx, 2, NULL, HZ * 10);
+       usb_bulk_msg(usb, tx_pipe, tx, 1, NULL, devpriv->ep_tx->bInterval);
+       usb_bulk_msg(usb, rx_pipe, rx, 2, NULL, HZ * 10);
 
        return (int)rx[1];
 }
 
-static void vmk80xx_read_eeprom(struct vmk80xx_private *dev, int flag)
+static void vmk80xx_read_eeprom(struct vmk80xx_private *devpriv, int flag)
 {
+       struct usb_device *usb = devpriv->usb;
        unsigned int tx_pipe;
        unsigned int rx_pipe;
        unsigned char tx[1];
        unsigned char rx[64];
        int cnt;
 
-       tx_pipe = usb_sndbulkpipe(dev->udev, 0x01);
-       rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81);
+       tx_pipe = usb_sndbulkpipe(usb, 0x01);
+       rx_pipe = usb_rcvbulkpipe(usb, 0x81);
 
        tx[0] = VMK8061_CMD_RD_VERSION;
 
@@ -315,19 +319,21 @@ static void vmk80xx_read_eeprom(struct vmk80xx_private *dev, int flag)
         * Read the firmware version info of IC3 and
         * IC6 from the internal EEPROM of the IC
         */
-       usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL, dev->ep_tx->bInterval);
-       usb_bulk_msg(dev->udev, rx_pipe, rx, 64, &cnt, HZ * 10);
+       usb_bulk_msg(usb, tx_pipe, tx, 1, NULL, devpriv->ep_tx->bInterval);
+       usb_bulk_msg(usb, rx_pipe, rx, 64, &cnt, HZ * 10);
 
        rx[cnt] = '\0';
 
        if (flag & IC3_VERSION)
-               strncpy(dev->fw.ic3_vers, rx + 1, 24);
+               strncpy(devpriv->fw.ic3_vers, rx + 1, 24);
        else                    /* IC6_VERSION */
-               strncpy(dev->fw.ic6_vers, rx + 25, 24);
+               strncpy(devpriv->fw.ic6_vers, rx + 25, 24);
 }
 
-static int vmk80xx_reset_device(struct vmk80xx_private *dev)
+static int vmk80xx_reset_device(struct vmk80xx_private *devpriv)
 {
+       struct usb_device *usb = devpriv->usb;
+       unsigned char *tx_buf = devpriv->usb_tx_buf;
        struct urb *urb;
        unsigned int tx_pipe;
        int ival;
@@ -337,31 +343,32 @@ static int vmk80xx_reset_device(struct vmk80xx_private *dev)
        if (!urb)
                return -ENOMEM;
 
-       tx_pipe = usb_sndintpipe(dev->udev, 0x01);
+       tx_pipe = usb_sndintpipe(usb, 0x01);
 
-       ival = dev->ep_tx->bInterval;
-       size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+       ival = devpriv->ep_tx->bInterval;
+       size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
 
-       dev->usb_tx_buf[0] = VMK8055_CMD_RST;
-       dev->usb_tx_buf[1] = 0x00;
-       dev->usb_tx_buf[2] = 0x00;
-       dev->usb_tx_buf[3] = 0x00;
-       dev->usb_tx_buf[4] = 0x00;
-       dev->usb_tx_buf[5] = 0x00;
-       dev->usb_tx_buf[6] = 0x00;
-       dev->usb_tx_buf[7] = 0x00;
+       tx_buf[0] = VMK8055_CMD_RST;
+       tx_buf[1] = 0x00;
+       tx_buf[2] = 0x00;
+       tx_buf[3] = 0x00;
+       tx_buf[4] = 0x00;
+       tx_buf[5] = 0x00;
+       tx_buf[6] = 0x00;
+       tx_buf[7] = 0x00;
 
-       usb_fill_int_urb(urb, dev->udev, tx_pipe, dev->usb_tx_buf,
-                        size, vmk80xx_tx_callback, dev, ival);
+       usb_fill_int_urb(urb, usb, tx_pipe, tx_buf, size,
+                        vmk80xx_tx_callback, devpriv, ival);
 
-       usb_anchor_urb(urb, &dev->tx_anchor);
+       usb_anchor_urb(urb, &devpriv->tx_anchor);
 
        return usb_submit_urb(urb, GFP_KERNEL);
 }
 
 static void vmk80xx_build_int_urb(struct urb *urb, int flag)
 {
-       struct vmk80xx_private *dev = urb->context;
+       struct vmk80xx_private *devpriv = urb->context;
+       struct usb_device *usb = devpriv->usb;
        __u8 rx_addr;
        __u8 tx_addr;
        unsigned int pipe;
@@ -371,72 +378,74 @@ static void vmk80xx_build_int_urb(struct urb *urb, int flag)
        int ival;
 
        if (flag & URB_RCV_FLAG) {
-               rx_addr = dev->ep_rx->bEndpointAddress;
-               pipe = usb_rcvintpipe(dev->udev, rx_addr);
-               buf = dev->usb_rx_buf;
-               size = le16_to_cpu(dev->ep_rx->wMaxPacketSize);
+               rx_addr = devpriv->ep_rx->bEndpointAddress;
+               pipe = usb_rcvintpipe(usb, rx_addr);
+               buf = devpriv->usb_rx_buf;
+               size = le16_to_cpu(devpriv->ep_rx->wMaxPacketSize);
                callback = vmk80xx_rx_callback;
-               ival = dev->ep_rx->bInterval;
+               ival = devpriv->ep_rx->bInterval;
        } else {                /* URB_SND_FLAG */
-               tx_addr = dev->ep_tx->bEndpointAddress;
-               pipe = usb_sndintpipe(dev->udev, tx_addr);
-               buf = dev->usb_tx_buf;
-               size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+               tx_addr = devpriv->ep_tx->bEndpointAddress;
+               pipe = usb_sndintpipe(usb, tx_addr);
+               buf = devpriv->usb_tx_buf;
+               size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
                callback = vmk80xx_tx_callback;
-               ival = dev->ep_tx->bInterval;
+               ival = devpriv->ep_tx->bInterval;
        }
 
-       usb_fill_int_urb(urb, dev->udev, pipe, buf, size, callback, dev, ival);
+       usb_fill_int_urb(urb, usb, pipe, buf, size, callback, devpriv, ival);
 }
 
-static void vmk80xx_do_bulk_msg(struct vmk80xx_private *dev)
+static void vmk80xx_do_bulk_msg(struct vmk80xx_private *devpriv)
 {
+       struct usb_device *usb = devpriv->usb;
+       unsigned long *flags = &devpriv->flags;
        __u8 tx_addr;
        __u8 rx_addr;
        unsigned int tx_pipe;
        unsigned int rx_pipe;
        size_t size;
 
-       set_bit(TRANS_IN_BUSY, &dev->flags);
-       set_bit(TRANS_OUT_BUSY, &dev->flags);
+       set_bit(TRANS_IN_BUSY, flags);
+       set_bit(TRANS_OUT_BUSY, flags);
 
-       tx_addr = dev->ep_tx->bEndpointAddress;
-       rx_addr = dev->ep_rx->bEndpointAddress;
-       tx_pipe = usb_sndbulkpipe(dev->udev, tx_addr);
-       rx_pipe = usb_rcvbulkpipe(dev->udev, rx_addr);
+       tx_addr = devpriv->ep_tx->bEndpointAddress;
+       rx_addr = devpriv->ep_rx->bEndpointAddress;
+       tx_pipe = usb_sndbulkpipe(usb, tx_addr);
+       rx_pipe = usb_rcvbulkpipe(usb, rx_addr);
 
        /*
         * The max packet size attributes of the K8061
         * input/output endpoints are identical
         */
-       size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+       size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
 
-       usb_bulk_msg(dev->udev, tx_pipe, dev->usb_tx_buf,
-                    size, NULL, dev->ep_tx->bInterval);
-       usb_bulk_msg(dev->udev, rx_pipe, dev->usb_rx_buf, size, NULL, HZ * 10);
+       usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf,
+                    size, NULL, devpriv->ep_tx->bInterval);
+       usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10);
 
-       clear_bit(TRANS_OUT_BUSY, &dev->flags);
-       clear_bit(TRANS_IN_BUSY, &dev->flags);
+       clear_bit(TRANS_OUT_BUSY, flags);
+       clear_bit(TRANS_IN_BUSY, flags);
 }
 
-static int vmk80xx_read_packet(struct vmk80xx_private *dev)
+static int vmk80xx_read_packet(struct vmk80xx_private *devpriv)
 {
-       const struct vmk80xx_board *boardinfo = dev->board;
+       const struct vmk80xx_board *boardinfo = devpriv->board;
+       unsigned long *flags = &devpriv->flags;
        struct urb *urb;
        int retval;
 
-       if (!dev->intf)
+       if (!devpriv->intf)
                return -ENODEV;
 
        /* Only useful for interrupt transfers */
-       if (test_bit(TRANS_IN_BUSY, &dev->flags))
-               if (wait_event_interruptible(dev->read_wait,
-                                            !test_bit(TRANS_IN_BUSY,
-                                                      &dev->flags)))
+       if (test_bit(TRANS_IN_BUSY, flags))
+               if (wait_event_interruptible(devpriv->read_wait,
+                                            !test_bit(TRANS_IN_BUSY, flags)))
                        return -ERESTART;
 
        if (boardinfo->model == VMK8061_MODEL) {
-               vmk80xx_do_bulk_msg(dev);
+               vmk80xx_do_bulk_msg(devpriv);
 
                return 0;
        }
@@ -445,19 +454,19 @@ static int vmk80xx_read_packet(struct vmk80xx_private *dev)
        if (!urb)
                return -ENOMEM;
 
-       urb->context = dev;
+       urb->context = devpriv;
        vmk80xx_build_int_urb(urb, URB_RCV_FLAG);
 
-       set_bit(TRANS_IN_RUNNING, &dev->flags);
-       set_bit(TRANS_IN_BUSY, &dev->flags);
+       set_bit(TRANS_IN_RUNNING, flags);
+       set_bit(TRANS_IN_BUSY, flags);
 
-       usb_anchor_urb(urb, &dev->rx_anchor);
+       usb_anchor_urb(urb, &devpriv->rx_anchor);
 
        retval = usb_submit_urb(urb, GFP_KERNEL);
        if (!retval)
                goto exit;
 
-       clear_bit(TRANS_IN_RUNNING, &dev->flags);
+       clear_bit(TRANS_IN_RUNNING, flags);
        usb_unanchor_urb(urb);
 
 exit:
@@ -466,24 +475,24 @@ exit:
        return retval;
 }
 
-static int vmk80xx_write_packet(struct vmk80xx_private *dev, int cmd)
+static int vmk80xx_write_packet(struct vmk80xx_private *devpriv, int cmd)
 {
-       const struct vmk80xx_board *boardinfo = dev->board;
+       const struct vmk80xx_board *boardinfo = devpriv->board;
+       unsigned long *flags = &devpriv->flags;
        struct urb *urb;
        int retval;
 
-       if (!dev->intf)
+       if (!devpriv->intf)
                return -ENODEV;
 
-       if (test_bit(TRANS_OUT_BUSY, &dev->flags))
-               if (wait_event_interruptible(dev->write_wait,
-                                            !test_bit(TRANS_OUT_BUSY,
-                                                      &dev->flags)))
+       if (test_bit(TRANS_OUT_BUSY, flags))
+               if (wait_event_interruptible(devpriv->write_wait,
+                                            !test_bit(TRANS_OUT_BUSY, flags)))
                        return -ERESTART;
 
        if (boardinfo->model == VMK8061_MODEL) {
-               dev->usb_tx_buf[0] = cmd;
-               vmk80xx_do_bulk_msg(dev);
+               devpriv->usb_tx_buf[0] = cmd;
+               vmk80xx_do_bulk_msg(devpriv);
 
                return 0;
        }
@@ -492,20 +501,20 @@ static int vmk80xx_write_packet(struct vmk80xx_private *dev, int cmd)
        if (!urb)
                return -ENOMEM;
 
-       urb->context = dev;
+       urb->context = devpriv;
        vmk80xx_build_int_urb(urb, URB_SND_FLAG);
 
-       set_bit(TRANS_OUT_BUSY, &dev->flags);
+       set_bit(TRANS_OUT_BUSY, flags);
 
-       usb_anchor_urb(urb, &dev->tx_anchor);
+       usb_anchor_urb(urb, &devpriv->tx_anchor);
 
-       dev->usb_tx_buf[0] = cmd;
+       devpriv->usb_tx_buf[0] = cmd;
 
        retval = usb_submit_urb(urb, GFP_KERNEL);
        if (!retval)
                goto exit;
 
-       clear_bit(TRANS_OUT_BUSY, &dev->flags);
+       clear_bit(TRANS_OUT_BUSY, flags);
        usb_unanchor_urb(urb);
 
 exit:
@@ -517,41 +526,41 @@ exit:
 #define DIR_IN  1
 #define DIR_OUT 2
 
-static int rudimentary_check(struct vmk80xx_private *dev, int dir)
+static int rudimentary_check(struct vmk80xx_private *devpriv, int dir)
 {
-       if (!dev)
+       if (!devpriv)
                return -EFAULT;
-       if (!dev->probed)
+       if (!devpriv->probed)
                return -ENODEV;
-       if (!dev->attached)
+       if (!devpriv->attached)
                return -ENODEV;
        if (dir & DIR_IN) {
-               if (test_bit(TRANS_IN_BUSY, &dev->flags))
+               if (test_bit(TRANS_IN_BUSY, &devpriv->flags))
                        return -EBUSY;
        }
        if (dir & DIR_OUT) {
-               if (test_bit(TRANS_OUT_BUSY, &dev->flags))
+               if (test_bit(TRANS_OUT_BUSY, &devpriv->flags))
                        return -EBUSY;
        }
 
        return 0;
 }
 
-static int vmk80xx_ai_rinsn(struct comedi_device *cdev,
+static int vmk80xx_ai_rinsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        int reg[2];
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        switch (boardinfo->model) {
@@ -565,46 +574,46 @@ static int vmk80xx_ai_rinsn(struct comedi_device *cdev,
        default:
                reg[0] = VMK8061_AI_REG1;
                reg[1] = VMK8061_AI_REG2;
-               dev->usb_tx_buf[0] = VMK8061_CMD_RD_AI;
-               dev->usb_tx_buf[VMK8061_CH_REG] = chan;
+               devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AI;
+               devpriv->usb_tx_buf[VMK8061_CH_REG] = chan;
                break;
        }
 
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
                if (boardinfo->model == VMK8055_MODEL) {
-                       data[n] = dev->usb_rx_buf[reg[0]];
+                       data[n] = devpriv->usb_rx_buf[reg[0]];
                        continue;
                }
 
                /* VMK8061_MODEL */
-               data[n] = dev->usb_rx_buf[reg[0]] + 256 *
-                   dev->usb_rx_buf[reg[1]];
+               data[n] = devpriv->usb_rx_buf[reg[0]] + 256 *
+                   devpriv->usb_rx_buf[reg[1]];
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_ao_winsn(struct comedi_device *cdev,
+static int vmk80xx_ao_winsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        int cmd;
        int reg;
        int n;
 
-       n = rudimentary_check(dev, DIR_OUT);
+       n = rudimentary_check(devpriv, DIR_OUT);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        switch (boardinfo->model) {
@@ -618,80 +627,80 @@ static int vmk80xx_ao_winsn(struct comedi_device *cdev,
        default:                /* NOTE: avoid compiler warnings */
                cmd = VMK8061_CMD_SET_AO;
                reg = VMK8061_AO_REG;
-               dev->usb_tx_buf[VMK8061_CH_REG] = chan;
+               devpriv->usb_tx_buf[VMK8061_CH_REG] = chan;
                break;
        }
 
        for (n = 0; n < insn->n; n++) {
-               dev->usb_tx_buf[reg] = data[n];
+               devpriv->usb_tx_buf[reg] = data[n];
 
-               if (vmk80xx_write_packet(dev, cmd))
+               if (vmk80xx_write_packet(devpriv, cmd))
                        break;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_ao_rinsn(struct comedi_device *cdev,
+static int vmk80xx_ao_rinsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       struct vmk80xx_private *dev = cdev->private;
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        int reg;
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        reg = VMK8061_AO_REG - 1;
 
-       dev->usb_tx_buf[0] = VMK8061_CMD_RD_AO;
+       devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AO;
 
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
-               data[n] = dev->usb_rx_buf[reg + chan];
+               data[n] = devpriv->usb_rx_buf[reg + chan];
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_di_bits(struct comedi_device *cdev,
+static int vmk80xx_di_bits(struct comedi_device *dev,
                           struct comedi_subdevice *s,
                           struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        unsigned char *rx_buf;
        int reg;
        int retval;
 
-       retval = rudimentary_check(dev, DIR_IN);
+       retval = rudimentary_check(devpriv, DIR_IN);
        if (retval)
                return retval;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
 
-       rx_buf = dev->usb_rx_buf;
+       rx_buf = devpriv->usb_rx_buf;
 
        if (boardinfo->model == VMK8061_MODEL) {
                reg = VMK8061_DI_REG;
-               dev->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
+               devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
        } else {
                reg = VMK8055_DI_REG;
        }
 
-       retval = vmk80xx_read_packet(dev);
+       retval = vmk80xx_read_packet(devpriv);
 
        if (!retval) {
                if (boardinfo->model == VMK8055_MODEL)
@@ -704,40 +713,40 @@ static int vmk80xx_di_bits(struct comedi_device *cdev,
                retval = 2;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return retval;
 }
 
-static int vmk80xx_di_rinsn(struct comedi_device *cdev,
+static int vmk80xx_di_rinsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        unsigned char *rx_buf;
        int reg;
        int inp;
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
-       rx_buf = dev->usb_rx_buf;
+       rx_buf = devpriv->usb_rx_buf;
 
        if (boardinfo->model == VMK8061_MODEL) {
                reg = VMK8061_DI_REG;
-               dev->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
+               devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
        } else {
                reg = VMK8055_DI_REG;
        }
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
                if (boardinfo->model == VMK8055_MODEL)
@@ -750,31 +759,31 @@ static int vmk80xx_di_rinsn(struct comedi_device *cdev,
                data[n] = (inp >> chan) & 1;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_do_winsn(struct comedi_device *cdev,
+static int vmk80xx_do_winsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        unsigned char *tx_buf;
        int reg;
        int cmd;
        int n;
 
-       n = rudimentary_check(dev, DIR_OUT);
+       n = rudimentary_check(devpriv, DIR_OUT);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
-       tx_buf = dev->usb_tx_buf;
+       tx_buf = devpriv->usb_tx_buf;
 
        for (n = 0; n < insn->n; n++) {
                if (boardinfo->model == VMK8055_MODEL) {
@@ -795,53 +804,53 @@ static int vmk80xx_do_winsn(struct comedi_device *cdev,
                        }
                }
 
-               if (vmk80xx_write_packet(dev, cmd))
+               if (vmk80xx_write_packet(devpriv, cmd))
                        break;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_do_rinsn(struct comedi_device *cdev,
+static int vmk80xx_do_rinsn(struct comedi_device *dev,
                            struct comedi_subdevice *s,
                            struct comedi_insn *insn, unsigned int *data)
 {
-       struct vmk80xx_private *dev = cdev->private;
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        int reg;
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        reg = VMK8061_DO_REG;
 
-       dev->usb_tx_buf[0] = VMK8061_CMD_RD_DO;
+       devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_DO;
 
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
-               data[n] = (dev->usb_rx_buf[reg] >> chan) & 1;
+               data[n] = (devpriv->usb_rx_buf[reg] >> chan) & 1;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_do_bits(struct comedi_device *cdev,
+static int vmk80xx_do_bits(struct comedi_device *dev,
                           struct comedi_subdevice *s,
                           struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        unsigned char *rx_buf, *tx_buf;
        int dir, reg, cmd;
        int retval;
@@ -854,14 +863,14 @@ static int vmk80xx_do_bits(struct comedi_device *cdev,
        if (boardinfo->model == VMK8061_MODEL)
                dir |= DIR_IN;
 
-       retval = rudimentary_check(dev, dir);
+       retval = rudimentary_check(devpriv, dir);
        if (retval)
                return retval;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
 
-       rx_buf = dev->usb_rx_buf;
-       tx_buf = dev->usb_tx_buf;
+       rx_buf = devpriv->usb_rx_buf;
+       tx_buf = devpriv->usb_tx_buf;
 
        if (data[0]) {
                if (boardinfo->model == VMK8055_MODEL) {
@@ -875,7 +884,7 @@ static int vmk80xx_do_bits(struct comedi_device *cdev,
                tx_buf[reg] &= ~data[0];
                tx_buf[reg] |= (data[0] & data[1]);
 
-               retval = vmk80xx_write_packet(dev, cmd);
+               retval = vmk80xx_write_packet(devpriv, cmd);
 
                if (retval)
                        goto out;
@@ -885,7 +894,7 @@ static int vmk80xx_do_bits(struct comedi_device *cdev,
                reg = VMK8061_DO_REG;
                tx_buf[0] = VMK8061_CMD_RD_DO;
 
-               retval = vmk80xx_read_packet(dev);
+               retval = vmk80xx_read_packet(devpriv);
 
                if (!retval) {
                        data[1] = rx_buf[reg];
@@ -897,26 +906,26 @@ static int vmk80xx_do_bits(struct comedi_device *cdev,
        }
 
 out:
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return retval;
 }
 
-static int vmk80xx_cnt_rinsn(struct comedi_device *cdev,
+static int vmk80xx_cnt_rinsn(struct comedi_device *dev,
                             struct comedi_subdevice *s,
                             struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        int chan;
        int reg[2];
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        switch (boardinfo->model) {
@@ -930,39 +939,39 @@ static int vmk80xx_cnt_rinsn(struct comedi_device *cdev,
        default:
                reg[0] = VMK8061_CNT_REG;
                reg[1] = VMK8061_CNT_REG;
-               dev->usb_tx_buf[0] = VMK8061_CMD_RD_CNT;
+               devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_CNT;
                break;
        }
 
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
                if (boardinfo->model == VMK8055_MODEL)
-                       data[n] = dev->usb_rx_buf[reg[0]];
+                       data[n] = devpriv->usb_rx_buf[reg[0]];
                else /* VMK8061_MODEL */
-                       data[n] = dev->usb_rx_buf[reg[0] * (chan + 1) + 1]
-                           + 256 * dev->usb_rx_buf[reg[1] * 2 + 2];
+                       data[n] = devpriv->usb_rx_buf[reg[0] * (chan + 1) + 1]
+                           + 256 * devpriv->usb_rx_buf[reg[1] * 2 + 2];
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_cnt_cinsn(struct comedi_device *cdev,
+static int vmk80xx_cnt_cinsn(struct comedi_device *dev,
                             struct comedi_subdevice *s,
                             struct comedi_insn *insn, unsigned int *data)
 {
-       const struct vmk80xx_board *boardinfo = comedi_board(cdev);
-       struct vmk80xx_private *dev = cdev->private;
+       const struct vmk80xx_board *boardinfo = comedi_board(dev);
+       struct vmk80xx_private *devpriv = dev->private;
        unsigned int insn_cmd;
        int chan;
        int cmd;
        int reg;
        int n;
 
-       n = rudimentary_check(dev, DIR_OUT);
+       n = rudimentary_check(devpriv, DIR_OUT);
        if (n)
                return n;
 
@@ -970,7 +979,7 @@ static int vmk80xx_cnt_cinsn(struct comedi_device *cdev,
        if (insn_cmd != INSN_CONFIG_RESET && insn_cmd != GPCT_RESET)
                return -EINVAL;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
 
        chan = CR_CHAN(insn->chanspec);
 
@@ -983,36 +992,36 @@ static int vmk80xx_cnt_cinsn(struct comedi_device *cdev,
                        reg = VMK8055_CNT2_REG;
                }
 
-               dev->usb_tx_buf[reg] = 0x00;
+               devpriv->usb_tx_buf[reg] = 0x00;
        } else {
                cmd = VMK8061_CMD_RST_CNT;
        }
 
        for (n = 0; n < insn->n; n++)
-               if (vmk80xx_write_packet(dev, cmd))
+               if (vmk80xx_write_packet(devpriv, cmd))
                        break;
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_cnt_winsn(struct comedi_device *cdev,
+static int vmk80xx_cnt_winsn(struct comedi_device *dev,
                             struct comedi_subdevice *s,
                             struct comedi_insn *insn, unsigned int *data)
 {
-       struct vmk80xx_private *dev = cdev->private;
+       struct vmk80xx_private *devpriv = dev->private;
        unsigned long debtime;
        unsigned long val;
        int chan;
        int cmd;
        int n;
 
-       n = rudimentary_check(dev, DIR_OUT);
+       n = rudimentary_check(devpriv, DIR_OUT);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
        chan = CR_CHAN(insn->chanspec);
 
        if (!chan)
@@ -1033,65 +1042,70 @@ static int vmk80xx_cnt_winsn(struct comedi_device *cdev,
                if (((val + 1) * val) < debtime * 1000 / 115)
                        val += 1;
 
-               dev->usb_tx_buf[6 + chan] = val;
+               devpriv->usb_tx_buf[6 + chan] = val;
 
-               if (vmk80xx_write_packet(dev, cmd))
+               if (vmk80xx_write_packet(devpriv, cmd))
                        break;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_pwm_rinsn(struct comedi_device *cdev,
+static int vmk80xx_pwm_rinsn(struct comedi_device *dev,
                             struct comedi_subdevice *s,
                             struct comedi_insn *insn, unsigned int *data)
 {
-       struct vmk80xx_private *dev = cdev->private;
+       struct vmk80xx_private *devpriv = dev->private;
+       unsigned char *tx_buf;
+       unsigned char *rx_buf;
        int reg[2];
        int n;
 
-       n = rudimentary_check(dev, DIR_IN);
+       n = rudimentary_check(devpriv, DIR_IN);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
+
+       tx_buf = devpriv->usb_tx_buf;
+       rx_buf = devpriv->usb_rx_buf;
 
        reg[0] = VMK8061_PWM_REG1;
        reg[1] = VMK8061_PWM_REG2;
 
-       dev->usb_tx_buf[0] = VMK8061_CMD_RD_PWM;
+       tx_buf[0] = VMK8061_CMD_RD_PWM;
 
        for (n = 0; n < insn->n; n++) {
-               if (vmk80xx_read_packet(dev))
+               if (vmk80xx_read_packet(devpriv))
                        break;
 
-               data[n] = dev->usb_rx_buf[reg[0]] + 4 * dev->usb_rx_buf[reg[1]];
+               data[n] = rx_buf[reg[0]] + 4 * rx_buf[reg[1]];
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_pwm_winsn(struct comedi_device *cdev,
+static int vmk80xx_pwm_winsn(struct comedi_device *dev,
                             struct comedi_subdevice *s,
                             struct comedi_insn *insn, unsigned int *data)
 {
-       struct vmk80xx_private *dev = cdev->private;
+       struct vmk80xx_private *devpriv = dev->private;
        unsigned char *tx_buf;
        int reg[2];
        int cmd;
        int n;
 
-       n = rudimentary_check(dev, DIR_OUT);
+       n = rudimentary_check(devpriv, DIR_OUT);
        if (n)
                return n;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
 
-       tx_buf = dev->usb_tx_buf;
+       tx_buf = devpriv->usb_tx_buf;
 
        reg[0] = VMK8061_PWM_REG1;
        reg[1] = VMK8061_PWM_REG2;
@@ -1115,42 +1129,42 @@ static int vmk80xx_pwm_winsn(struct comedi_device *cdev,
                tx_buf[reg[0]] = (unsigned char)(data[n] & 0x03);
                tx_buf[reg[1]] = (unsigned char)(data[n] >> 2) & 0xff;
 
-               if (vmk80xx_write_packet(dev, cmd))
+               if (vmk80xx_write_packet(devpriv, cmd))
                        break;
        }
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return n;
 }
 
-static int vmk80xx_attach_common(struct comedi_device *cdev,
-                                struct vmk80xx_private *dev)
+static int vmk80xx_attach_common(struct comedi_device *dev,
+                                struct vmk80xx_private *devpriv)
 {
        const struct vmk80xx_board *boardinfo;
        int n_subd;
        struct comedi_subdevice *s;
        int ret;
 
-       down(&dev->limit_sem);
+       down(&devpriv->limit_sem);
 
-       boardinfo = dev->board;
-       cdev->board_ptr = boardinfo;
-       cdev->board_name = boardinfo->name;
-       cdev->private = dev;
+       boardinfo = devpriv->board;
+       dev->board_ptr = boardinfo;
+       dev->board_name = boardinfo->name;
+       dev->private = devpriv;
 
        if (boardinfo->model == VMK8055_MODEL)
                n_subd = 5;
        else
                n_subd = 6;
-       ret = comedi_alloc_subdevices(cdev, n_subd);
+       ret = comedi_alloc_subdevices(dev, n_subd);
        if (ret) {
-               up(&dev->limit_sem);
+               up(&devpriv->limit_sem);
                return ret;
        }
 
        /* Analog input subdevice */
-       s = &cdev->subdevices[0];
+       s = &dev->subdevices[0];
        s->type = COMEDI_SUBD_AI;
        s->subdev_flags = SDF_READABLE | SDF_GROUND;
        s->n_chan = boardinfo->ai_chans;
@@ -1159,7 +1173,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
        s->insn_read = vmk80xx_ai_rinsn;
 
        /* Analog output subdevice */
-       s = &cdev->subdevices[1];
+       s = &dev->subdevices[1];
        s->type = COMEDI_SUBD_AO;
        s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
        s->n_chan = boardinfo->ao_chans;
@@ -1172,7 +1186,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
        }
 
        /* Digital input subdevice */
-       s = &cdev->subdevices[2];
+       s = &dev->subdevices[2];
        s->type = COMEDI_SUBD_DI;
        s->subdev_flags = SDF_READABLE | SDF_GROUND;
        s->n_chan = boardinfo->di_chans;
@@ -1181,7 +1195,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
        s->insn_bits = vmk80xx_di_bits;
 
        /* Digital output subdevice */
-       s = &cdev->subdevices[3];
+       s = &dev->subdevices[3];
        s->type = COMEDI_SUBD_DO;
        s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
        s->n_chan = 8;
@@ -1194,7 +1208,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
        }
 
        /* Counter subdevice */
-       s = &cdev->subdevices[4];
+       s = &dev->subdevices[4];
        s->type = COMEDI_SUBD_COUNTER;
        s->subdev_flags = SDF_READABLE;
        s->n_chan = 2;
@@ -1208,7 +1222,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 
        /* PWM subdevice */
        if (boardinfo->model == VMK8061_MODEL) {
-               s = &cdev->subdevices[5];
+               s = &dev->subdevices[5];
                s->type = COMEDI_SUBD_PWM;
                s->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
                s->n_chan = boardinfo->pwm_chans;
@@ -1217,19 +1231,19 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
                s->insn_write = vmk80xx_pwm_winsn;
        }
 
-       dev->attached = 1;
-       dev_info(cdev->class_dev, "vmk80xx: board #%d [%s] attached\n",
-                dev->count, boardinfo->name);
+       devpriv->attached = 1;
+       dev_info(dev->class_dev, "vmk80xx: board #%d [%s] attached\n",
+                devpriv->count, boardinfo->name);
 
-       up(&dev->limit_sem);
+       up(&devpriv->limit_sem);
 
        return 0;
 }
 
-static int vmk80xx_auto_attach(struct comedi_device *cdev,
+static int vmk80xx_auto_attach(struct comedi_device *dev,
                               unsigned long context_unused)
 {
-       struct usb_interface *intf = comedi_to_usb_interface(cdev);
+       struct usb_interface *intf = comedi_to_usb_interface(dev);
        int i;
        int ret;
 
@@ -1242,34 +1256,34 @@ static int vmk80xx_auto_attach(struct comedi_device *cdev,
        else if (vmb[i].attached)
                ret = -EBUSY;
        else
-               ret = vmk80xx_attach_common(cdev, &vmb[i]);
+               ret = vmk80xx_attach_common(dev, &vmb[i]);
        mutex_unlock(&glb_mutex);
        return ret;
 }
 
 static void vmk80xx_detach(struct comedi_device *dev)
 {
-       struct vmk80xx_private *usb = dev->private;
+       struct vmk80xx_private *devpriv = dev->private;
 
-       if (!usb)
+       if (!devpriv)
                return;
 
        mutex_lock(&glb_mutex);
-       down(&usb->limit_sem);
+       down(&devpriv->limit_sem);
 
        dev->private = NULL;
 
-       usb->attached = 0;
-       usb->probed = 0;
-       usb_set_intfdata(usb->intf, NULL);
+       devpriv->attached = 0;
+       devpriv->probed = 0;
+       usb_set_intfdata(devpriv->intf, NULL);
 
-       usb_kill_anchored_urbs(&usb->rx_anchor);
-       usb_kill_anchored_urbs(&usb->tx_anchor);
+       usb_kill_anchored_urbs(&devpriv->rx_anchor);
+       usb_kill_anchored_urbs(&devpriv->tx_anchor);
 
-       kfree(usb->usb_rx_buf);
-       kfree(usb->usb_tx_buf);
+       kfree(devpriv->usb_rx_buf);
+       kfree(devpriv->usb_tx_buf);
 
-       up(&usb->limit_sem);
+       up(&devpriv->limit_sem);
        mutex_unlock(&glb_mutex);
 }
 
@@ -1284,11 +1298,11 @@ static int vmk80xx_usb_probe(struct usb_interface *intf,
                             const struct usb_device_id *id)
 {
        const struct vmk80xx_board *boardinfo;
-       int i;
-       struct vmk80xx_private *dev;
+       struct vmk80xx_private *devpriv;
        struct usb_host_interface *iface_desc;
        struct usb_endpoint_descriptor *ep_desc;
        size_t size;
+       int i;
 
        mutex_lock(&glb_mutex);
 
@@ -1301,10 +1315,10 @@ static int vmk80xx_usb_probe(struct usb_interface *intf,
                return -EMFILE;
        }
 
-       dev = &vmb[i];
+       devpriv = &vmb[i];
 
-       memset(dev, 0x00, sizeof(*dev));
-       dev->count = i;
+       memset(devpriv, 0x00, sizeof(*devpriv));
+       devpriv->count = i;
 
        iface_desc = intf->cur_altsetting;
        if (iface_desc->desc.bNumEndpoints != 2)
@@ -1314,78 +1328,78 @@ static int vmk80xx_usb_probe(struct usb_interface *intf,
                ep_desc = &iface_desc->endpoint[i].desc;
 
                if (usb_endpoint_is_int_in(ep_desc)) {
-                       dev->ep_rx = ep_desc;
+                       devpriv->ep_rx = ep_desc;
                        continue;
                }
 
                if (usb_endpoint_is_int_out(ep_desc)) {
-                       dev->ep_tx = ep_desc;
+                       devpriv->ep_tx = ep_desc;
                        continue;
                }
 
                if (usb_endpoint_is_bulk_in(ep_desc)) {
-                       dev->ep_rx = ep_desc;
+                       devpriv->ep_rx = ep_desc;
                        continue;
                }
 
                if (usb_endpoint_is_bulk_out(ep_desc)) {
-                       dev->ep_tx = ep_desc;
+                       devpriv->ep_tx = ep_desc;
                        continue;
                }
        }
 
-       if (!dev->ep_rx || !dev->ep_tx)
+       if (!devpriv->ep_rx || !devpriv->ep_tx)
                goto error;
 
-       size = le16_to_cpu(dev->ep_rx->wMaxPacketSize);
-       dev->usb_rx_buf = kmalloc(size, GFP_KERNEL);
-       if (!dev->usb_rx_buf) {
+       size = le16_to_cpu(devpriv->ep_rx->wMaxPacketSize);
+       devpriv->usb_rx_buf = kmalloc(size, GFP_KERNEL);
+       if (!devpriv->usb_rx_buf) {
                mutex_unlock(&glb_mutex);
                return -ENOMEM;
        }
 
-       size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
-       dev->usb_tx_buf = kmalloc(size, GFP_KERNEL);
-       if (!dev->usb_tx_buf) {
-               kfree(dev->usb_rx_buf);
+       size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
+       devpriv->usb_tx_buf = kmalloc(size, GFP_KERNEL);
+       if (!devpriv->usb_tx_buf) {
+               kfree(devpriv->usb_rx_buf);
                mutex_unlock(&glb_mutex);
                return -ENOMEM;
        }
 
-       dev->udev = interface_to_usbdev(intf);
-       dev->intf = intf;
+       devpriv->usb = interface_to_usbdev(intf);
+       devpriv->intf = intf;
 
-       sema_init(&dev->limit_sem, 8);
-       init_waitqueue_head(&dev->read_wait);
-       init_waitqueue_head(&dev->write_wait);
+       sema_init(&devpriv->limit_sem, 8);
+       init_waitqueue_head(&devpriv->read_wait);
+       init_waitqueue_head(&devpriv->write_wait);
 
-       init_usb_anchor(&dev->rx_anchor);
-       init_usb_anchor(&dev->tx_anchor);
+       init_usb_anchor(&devpriv->rx_anchor);
+       init_usb_anchor(&devpriv->tx_anchor);
 
-       usb_set_intfdata(intf, dev);
+       usb_set_intfdata(intf, devpriv);
 
        boardinfo = &vmk80xx_boardinfo[id->driver_info];
-       dev->board = boardinfo;
+       devpriv->board = boardinfo;
 
        if (boardinfo->model == VMK8061_MODEL) {
-               vmk80xx_read_eeprom(dev, IC3_VERSION);
-               dev_info(&intf->dev, "%s\n", dev->fw.ic3_vers);
+               vmk80xx_read_eeprom(devpriv, IC3_VERSION);
+               dev_info(&intf->dev, "%s\n", devpriv->fw.ic3_vers);
 
-               if (vmk80xx_check_data_link(dev)) {
-                       vmk80xx_read_eeprom(dev, IC6_VERSION);
-                       dev_info(&intf->dev, "%s\n", dev->fw.ic6_vers);
+               if (vmk80xx_check_data_link(devpriv)) {
+                       vmk80xx_read_eeprom(devpriv, IC6_VERSION);
+                       dev_info(&intf->dev, "%s\n", devpriv->fw.ic6_vers);
                } else {
                        dbgcm("comedi#: vmk80xx: no conn. to CPU\n");
                }
        }
 
        if (boardinfo->model == VMK8055_MODEL)
-               vmk80xx_reset_device(dev);
+               vmk80xx_reset_device(devpriv);
 
-       dev->probed = 1;
+       devpriv->probed = 1;
 
        dev_info(&intf->dev, "board #%d [%s] now attached\n",
-                dev->count, boardinfo->name);
+                devpriv->count, boardinfo->name);
 
        mutex_unlock(&glb_mutex);