From 52dc085a50c6b4b8143087ce194d0b193cb3662d Mon Sep 17 00:00:00 2001 From: Michel Hermier Date: Tue, 20 Sep 2016 19:50:51 +0200 Subject: [PATCH] Revert "HID: microsoft: fix invalid rdesc for 3k kbd" This reverts commit 3ccc60f9d8c39180c205dba1a020735bda1b2491. While investigating bug https://bugzilla.kernel.org/show_bug.cgi?id=37982 , there was solid evidences that Microsoft reused the same report descriptor for the its Digital Media keyboard series. Since 1989dad "HID: input: ignore System Control application usages if not System Controls", the keyboard series do not produce a spurious joystick input device inode without needing to patch the problematic report descriptor. As such the MS_RDESC_3K reportdescriptor fixup can be removed. Signed-off-by: Michel Hermier Signed-off-by: Jiri Kosina --- drivers/hid/hid-microsoft.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index e924d555536c..3b2f7023bab6 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -28,7 +28,6 @@ #define MS_RDESC 0x08 #define MS_NOGET 0x10 #define MS_DUPLICATE_USAGES 0x20 -#define MS_RDESC_3K 0x40 static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) @@ -45,13 +44,6 @@ static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, rdesc[557] = 0x35; rdesc[559] = 0x45; } - /* the same as above (s/usage/physical/) */ - if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 && - rdesc[95] == 0x00 && rdesc[96] == 0x29 && - rdesc[97] == 0xff) { - rdesc[94] = 0x35; - rdesc[96] = 0x45; - } return rdesc; } @@ -271,7 +263,7 @@ static const struct hid_device_id ms_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB), .driver_data = MS_PRESENTER }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K), - .driver_data = MS_ERGONOMY | MS_RDESC_3K }, + .driver_data = MS_ERGONOMY }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K), .driver_data = MS_ERGONOMY }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600), -- 2.20.1