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| author | Maxime Bellengé <maxime.bellenge@gmail.com> | 2017-09-07 21:17:28 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-09-16 02:54:51 +0200 |
| commit | 832e1eeeba916b389c3ba090d8335aff3089428e (patch) | |
| tree | 02b7e68f9639f5934e9e4e72cff02dd4835bf12e /drivers/hid/hid-asus.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik... (diff) | |
| download | linux-832e1eeeba916b389c3ba090d8335aff3089428e.tar.xz linux-832e1eeeba916b389c3ba090d8335aff3089428e.zip | |
HID: asus: Add support for Fn keys on Asus ROG G752
This patch adds support for Fn keys on Asus ROG G752 laptop.
The report descriptor is broken so I fixed it.
Tested on an Asus G752VT.
Resent fix white space fixes
Signed-off-by: Maxime Bellengé <maxime.bellenge@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-asus.c')
| -rw-r--r-- | drivers/hid/hid-asus.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index 50c294be8324..27651f50738e 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -67,6 +67,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); #define QUIRK_USE_KBD_BACKLIGHT BIT(5) #define QUIRK_T100_KEYBOARD BIT(6) #define QUIRK_T100CHI BIT(7) +#define QUIRK_G752_KEYBOARD BIT(8) #define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ QUIRK_NO_INIT_REPORTS | \ @@ -670,6 +671,11 @@ static void asus_remove(struct hid_device *hdev) hid_hw_stop(hdev); } +static const __u8 asus_g752_fixed_rdesc[] = { + 0x19, 0x00, /* Usage Minimum (0x00) */ + 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */ +}; + static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { @@ -708,6 +714,27 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, rdesc[391] = 0xff; rdesc[402] = 0x00; } + if (drvdata->quirks & QUIRK_G752_KEYBOARD && + *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) { + /* report is missing usage mninum and maximum */ + __u8 *new_rdesc; + size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc); + + new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL); + if (new_rdesc == NULL) + return rdesc; + + hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n"); + /* copy the valid part */ + memcpy(new_rdesc, rdesc, 61); + /* insert missing part */ + memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc)); + /* copy remaining data */ + memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61); + + *rsize = new_size; + rdesc = new_rdesc; + } return rdesc; } @@ -722,6 +749,8 @@ static const struct hid_device_id asus_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, + USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD }, + { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD), QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, |