#define USB_REQ_GET_REPORT 0x01
#define USB_REQ_SET_REPORT 0x09
#define WAC_HID_FEATURE_REPORT 0x03
+#define WAC_MSG_RETRIES 5
static int usb_get_report(struct usb_interface *intf, unsigned char type,
unsigned char id, void *buf, int size)
report,
hid_desc->wDescriptorLength,
5000); /* 5 secs */
- } while (result < 0 && limit++ < 5);
+ } while (result < 0 && limit++ < WAC_MSG_RETRIES);
/* No need to parse the Descriptor. It isn't an error though */
if (result < 0)
get_unaligned_le16(&report[i + 3]);
i += 4;
}
- } else if (usage == WCM_DIGITIZER) {
- /* max pressure isn't reported
- features->pressure_max = (unsigned short)
- (report[i+4] << 8 | report[i + 3]);
- */
- features->pressure_max = 255;
- i += 4;
}
break;
pen = 1;
i++;
break;
-
- case HID_USAGE_UNDEFINED:
- if (usage == WCM_DESKTOP && finger) /* capacity */
- features->pressure_max =
- get_unaligned_le16(&report[i + 3]);
- i += 4;
- break;
}
break;
int limit = 0, report_id = 2;
int error = -ENOMEM;
- rep_data = kmalloc(2, GFP_KERNEL);
+ rep_data = kmalloc(4, GFP_KERNEL);
if (!rep_data)
return error;
- /* ask to report tablet data if it is 2FGT Tablet PC or
+ /* ask to report tablet data if it is MT Tablet PC or
* not a Tablet PC */
if (features->type == TABLETPC2FG) {
do {
rep_data[0] = 3;
rep_data[1] = 4;
+ rep_data[2] = 0;
+ rep_data[3] = 0;
report_id = 3;
error = usb_set_report(intf, WAC_HID_FEATURE_REPORT,
- report_id, rep_data, 2);
+ report_id, rep_data, 4);
if (error >= 0)
error = usb_get_report(intf,
WAC_HID_FEATURE_REPORT, report_id,
- rep_data, 3);
- } while ((error < 0 || rep_data[1] != 4) && limit++ < 5);
+ rep_data, 4);
+ } while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
} else if (features->type != TABLETPC) {
do {
rep_data[0] = 2;
error = usb_get_report(intf,
WAC_HID_FEATURE_REPORT, report_id,
rep_data, 2);
- } while ((error < 0 || rep_data[1] != 2) && limit++ < 5);
+ } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES);
}
kfree(rep_data);