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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2013-07-02 18:10:09 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-07-03 18:14:33 +0200 |
| commit | 3685c18e17f12438d0a83331c1b6a5b00fade7a1 (patch) | |
| tree | dd8d084089a8b93e3b1272160335426c05fc0bd1 /drivers/hid/hid-kye.c | |
| parent | HID: explain out-of-range check better (diff) | |
| download | linux-3685c18e17f12438d0a83331c1b6a5b00fade7a1.tar.xz linux-3685c18e17f12438d0a83331c1b6a5b00fade7a1.zip | |
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 <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-kye.c')
| -rw-r--r-- | drivers/hid/hid-kye.c | 21 |
1 files changed, 21 insertions, 0 deletions
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); |