HID: microsoft: fix invalid rdesc for 3k kbd
Microsoft Digital Media Keyboard 3000 has two interfaces, and the second one has a report descriptor with a bug. The second collection says: 05 01 -- global; usage page -- 01 -- Generic Desktop Controls 09 80 -- local; usage -- 80 -- System Control a1 01 -- main; collection -- 01 -- application 85 03 -- global; report ID -- 03 19 00 -- local; Usage Minimum -- 00 29 ff -- local; Usage Maximum -- ff 15 00 -- global; Logical Minimum -- 0 26 ff 00 -- global; Logical Maximum -- ff 81 00 -- main; input c0 -- main; End Collection I.e. it makes us think that there are all kinds of usages of system control. That the keyboard is a not only a keyboard, but also a joystick, mouse, gamepad, keypad, etc. The same as for the Wireless Desktop Receiver, this should be Physical Min/Max. So fix that appropriately. References: https://bugzilla.novell.com/show_bug.cgi?id=776834 Cc: <stable@vger.kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -28,22 +28,30 @@
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#define MS_RDESC 0x08
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#define MS_NOGET 0x10
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#define MS_DUPLICATE_USAGES 0x20
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#define MS_RDESC_3K 0x40
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/*
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* Microsoft Wireless Desktop Receiver (Model 1028) has
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* 'Usage Min/Max' where it ought to have 'Physical Min/Max'
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*/
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static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
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/*
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* Microsoft Wireless Desktop Receiver (Model 1028) has
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* 'Usage Min/Max' where it ought to have 'Physical Min/Max'
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*/
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if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
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rdesc[559] == 0x29) {
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hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
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rdesc[557] = 0x35;
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rdesc[559] = 0x45;
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}
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/* the same as above (s/usage/physical/) */
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if ((quirks & MS_RDESC_3K) && *rsize == 106 &&
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!memcmp((char []){ 0x19, 0x00, 0x29, 0xff },
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&rdesc[94], 4)) {
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rdesc[94] = 0x35;
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rdesc[96] = 0x45;
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}
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return rdesc;
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}
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@ -192,7 +200,7 @@ static const struct hid_device_id ms_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
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.driver_data = MS_PRESENTER },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
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.driver_data = MS_ERGONOMY },
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.driver_data = MS_ERGONOMY | MS_RDESC_3K },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
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.driver_data = MS_NOGET },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
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