static int digi_startup(struct usb_serial *serial)
{
+ struct device *dev = &serial->interface->dev;
int i;
struct digi_port *priv;
struct digi_serial *serial_priv;
dbg("digi_startup: TOP");
+ /* check whether the device has the expected number of endpoints */
+ if (serial->num_port_pointers < serial->type->num_ports + 1) {
+ dev_err(dev, "OOB endpoints missing\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; i < serial->type->num_ports + 1 ; i++) {
+ if (!serial->port[i]->read_urb) {
+ dev_err(dev, "bulk-in endpoint missing\n");
+ return -ENODEV;
+ }
+ if (!serial->port[i]->write_urb) {
+ dev_err(dev, "bulk-out endpoint missing\n");
+ return -ENODEV;
+ }
+ }
+
/* allocate the private data structures for all ports */
/* number of regular ports + 1 for the out-of-band port */
for (i = 0; i < serial->type->num_ports + 1; i++) {
struct usb_serial *serial = port->serial;
struct tty_struct *tty;
struct digi_port *priv = usb_get_serial_port_data(port);
+ unsigned char *buf = urb->transfer_buffer;
int opcode, line, status, val;
int i;
unsigned int rts;
dbg("digi_read_oob_callback: port=%d, len=%d",
priv->dp_port_num, urb->actual_length);
+ if (urb->actual_length < 4)
+ return -1;
+
/* handle each oob command */
- for (i = 0; i < urb->actual_length - 3;) {
- opcode = ((unsigned char *)urb->transfer_buffer)[i++];
- line = ((unsigned char *)urb->transfer_buffer)[i++];
- status = ((unsigned char *)urb->transfer_buffer)[i++];
- val = ((unsigned char *)urb->transfer_buffer)[i++];
+ for (i = 0; i < urb->actual_length - 4; i += 4) {
+ opcode = buf[i];
+ line = buf[i + 1];
+ status = buf[i + 2];
+ val = buf[i + 3];
dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d",
opcode, line, status, val);