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HID: kye: Add report fixup for Genius Gx Imperator Keyboard

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Genius Gx Imperator Keyboard presents the same problem in its report
descriptors than Genius Gila Gaming Mouse.
Use the same fixup for both.

Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=928561

Reported-and-tested-by: Honza Brazdil <jbrazdil@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires
2013-07-15 10:12:18 +02:00
committed by Jiri Kosina
parent 38ead6ef1d
commit 0adb9c2c5e
3 changed files with 30 additions and 17 deletions
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45
drivers/hid/hid-kye.c
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@@ -268,6 +268,26 @@ static __u8 easypen_m610x_rdesc_fixed[] = {
0xC0 /* End Collection */
};
static __u8 *kye_consumer_control_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize, int offset, const char *device_name) {
/*
* the fixup that need to be done:
* - change Usage Maximum in the Comsumer Control
* (report ID 3) to a reasonable value
*/
if (*rsize >= offset + 31 &&
/* Usage Page (Consumer Devices) */
rdesc[offset] == 0x05 && rdesc[offset + 1] == 0x0c &&
/* Usage (Consumer Control) */
rdesc[offset + 2] == 0x09 && rdesc[offset + 3] == 0x01 &&
/* Usage Maximum > 12287 */
rdesc[offset + 10] == 0x2a && rdesc[offset + 12] > 0x2f) {
hid_info(hdev, "fixing up %s report descriptor\n", device_name);
rdesc[offset + 12] = 0x2f;
}
return rdesc;
}
static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
@@ -315,23 +335,12 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
}
break;
case USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE:
/*
* the fixup that need to be done:
* - change Usage Maximum in the Comsumer Control
* (report ID 3) to a reasonable value
*/
if (*rsize >= 135 &&
/* Usage Page (Consumer Devices) */
rdesc[104] == 0x05 && rdesc[105] == 0x0c &&
/* Usage (Consumer Control) */
rdesc[106] == 0x09 && rdesc[107] == 0x01 &&
/* Usage Maximum > 12287 */
rdesc[114] == 0x2a && rdesc[116] > 0x2f) {
hid_info(hdev,
"fixing up Genius Gila Gaming Mouse "
"report descriptor\n");
rdesc[116] = 0x2f;
}
rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104,
"Genius Gila Gaming Mouse");
break;
case USB_DEVICE_ID_GENIUS_GX_IMPERATOR:
rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 83,
"Genius Gx Imperator Keyboard");
break;
}
return rdesc;
@@ -428,6 +437,8 @@ static const struct hid_device_id kye_devices[] = {
USB_DEVICE_ID_KYE_EASYPEN_M610X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
{ }
};
MODULE_DEVICE_TABLE(hid, kye_devices);