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HID: asus: Add T100CHI bluetooth keyboard dock special keys mapping

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The Asus Transformer T100CHI comes with a Bluetooth keyboard dock which
uses the same 0xff31 Asus vendor HUT page as other Asus keyboards.

This commit adds its device-id to hid-asus and fixes an issue in the
descriptor of the 0xff31 Usage, which together fixes the special keys
on this keyboard not working.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Hans de Goede 2017-07-02 16:34:15 +02:00 committed by Jiri Kosina
parent b61d43e6b0
commit 5703e52cc7
3 changed files with 29 additions and 0 deletions
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27
drivers/hid/hid-asus.c
View File

@ -65,6 +65,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define QUIRK_NO_CONSUMER_USAGES BIT(4)
#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
#define QUIRK_T100_KEYBOARD BIT(6)
#define QUIRK_T100CHI BIT(7)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
@ -619,11 +620,34 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
rdesc[55] = 0xdd;
}
/* For the T100TA keyboard dock */
if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
*rsize == 76 && rdesc[73] == 0x81 && rdesc[74] == 0x01) {
hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
}
/* For the T100CHI keyboard dock */
if (drvdata->quirks & QUIRK_T100CHI &&
*rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) {
/*
* Change Usage (76h) to Usage Minimum (00h), Usage Maximum
* (FFh) and clear the flags in the Input() byte.
* Note the descriptor has a bogus 0 byte at the end so we
* only need 1 extra byte.
*/
*rsize = 404;
rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n");
memmove(rdesc + 392, rdesc + 390, 12);
rdesc[388] = 0x19;
rdesc[389] = 0x00;
rdesc[390] = 0x29;
rdesc[391] = 0xff;
rdesc[402] = 0x00;
}
return rdesc;
}
@ -643,6 +667,9 @@ static const struct hid_device_id asus_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
{ }
};
MODULE_DEVICE_TABLE(hid, asus_devices);

1
drivers/hid/hid-core.c
View File

@ -1982,6 +1982,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD) },
#endif
#if IS_ENABLED(CONFIG_HID_AUREAL)
{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },

1
drivers/hid/hid-ids.h
View File

@ -176,6 +176,7 @@
#define USB_DEVICE_ID_ASUSTEK_LCM 0x1726
#define USB_DEVICE_ID_ASUSTEK_LCM2 0x175b
#define USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD 0x17e0
#define USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD 0x8502
#define USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD 0x8585
#define USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD 0x0101
#define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1 0x1854