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authorChristian Ohm <chr.ohm@gmx.net>2013-05-21 01:31:09 +0200
committerJiri Kosina <jkosina@suse.cz>2013-05-28 12:15:56 +0200
commitd4f5189052c68f5bae3aac62b357577ecb862fee (patch)
tree2d732da5906ea1cf135b2eb0a3034c326d902177 /drivers/hid/hid-holtek-mouse.c
parent41de326eafa6eff71c6ca00ae27c6be235c65a6d (diff)
downloadlinux-d4f5189052c68f5bae3aac62b357577ecb862fee.tar.bz2
HID: Add support for Holtek gaming mouse 04d9:a04a
This mouse is sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200 and Zalman ZM-GM1, and reports too high usage maximum and logical maximum (like 04d9:a067, but its report descriptor is different). This patch adds its USB ID and fixes the report descriptor in the same way. Note: I don't actually have such a mouse to test, I took the report descriptor posted at https://bugzilla.novell.com/show_bug.cgi?id=774676, compared it to the one from 04d9:a067 and changed the offsets accordingly (all numbers minus 9, since it is 9 bytes shorter, and the difference is before the values that need changing). That Surely Works™. Signed-off-by: Christian Ohm <chr.ohm@gmx.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-holtek-mouse.c')
-rw-r--r--drivers/hid/hid-holtek-mouse.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c
index f32e29aea11a..6a23ee678138 100644
--- a/drivers/hid/hid-holtek-mouse.c
+++ b/drivers/hid/hid-holtek-mouse.c
@@ -23,8 +23,10 @@
* excessively large number of consumer usages (2^15), which is more than
* HID_MAX_USAGES. This prevents proper parsing of the report descriptor.
*
- * This driver fixes the report descriptor for USB ID 04d9:a067, sold as
- * Sharkoon Drakonia and Perixx MX-2000.
+ * This driver fixes the report descriptor for:
+ * - USB ID 04d9:a067, sold as Sharkoon Drakonia and Perixx MX-2000
+ * - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200
+ * and Zalman ZM-GM1
*/
static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
@@ -35,11 +37,23 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
/* Change usage maximum and logical maximum from 0x7fff to
* 0x2fff, so they don't exceed HID_MAX_USAGES */
- if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f
- && rdesc[120] == 0xff && rdesc[121] == 0x7f) {
- hid_info(hdev, "Fixing up report descriptor\n");
- rdesc[116] = rdesc[121] = 0x2f;
+ switch (hdev->product) {
+ case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067:
+ if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f
+ && rdesc[120] == 0xff && rdesc[121] == 0x7f) {
+ hid_info(hdev, "Fixing up report descriptor\n");
+ rdesc[116] = rdesc[121] = 0x2f;
+ }
+ break;
+ case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A:
+ if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f
+ && rdesc[111] == 0xff && rdesc[112] == 0x7f) {
+ hid_info(hdev, "Fixing up report descriptor\n");
+ rdesc[107] = rdesc[112] = 0x2f;
+ }
+ break;
}
+
}
return rdesc;
}
@@ -47,6 +61,8 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
static const struct hid_device_id holtek_mouse_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
+ USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
{ }
};
MODULE_DEVICE_TABLE(hid, holtek_mouse_devices);