From 3685c18e17f12438d0a83331c1b6a5b00fade7a1 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 2 Jul 2013 18:10:09 +0200 Subject: HID: kye: Add report fixup for Genius Gila Gaming mouse Genius Gila Gaming Mouse presents an obviously wrong report descriptor. the Consumer control (report ID 3) is the following: 0x05, 0x0c, // Usage Page (Consumer Devices) 105 0x09, 0x01, // Usage (Consumer Control) 107 0xa1, 0x01, // Collection (Application) 109 0x85, 0x03, // Report ID (3) 111 0x19, 0x00, // Usage Minimum (0) 113 0x2a, 0xff, 0x7f, // Usage Maximum (32767) 115 0x15, 0x00, // Logical Minimum (0) 118 0x26, 0xff, 0x7f, // Logical Maximum (32767) 120 0x75, 0x10, // Report Size (16) 123 0x95, 0x03, // Report Count (3) 125 0x81, 0x00, // Input (Data,Arr,Abs) 127 0x75, 0x08, // Report Size (8) 129 0x95, 0x01, // Report Count (1) 131 0x81, 0x01, // Input (Cnst,Arr,Abs) 133 0xc0, // End Collection 135 So the first input whithin this report has a count of 3 but a usage range of 32768. So this value is obviously wrong as it should not be greater than the report count. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=959721 Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-kye.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/hid/hid-kye.c') diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c index 6af90dbdc3d4..1e2ee2aa84a0 100644 --- a/drivers/hid/hid-kye.c +++ b/drivers/hid/hid-kye.c @@ -314,6 +314,25 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc, *rsize = sizeof(easypen_m610x_rdesc_fixed); } 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; + } + break; } return rdesc; } @@ -407,6 +426,8 @@ static const struct hid_device_id kye_devices[] = { USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYE, + USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, { } }; MODULE_DEVICE_TABLE(hid, kye_devices); -- cgit v1.2.3