Commit b5539722 authored by Zoltan Tamas Vajda's avatar Zoltan Tamas Vajda Committed by Jiri Kosina
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HID: hid-input: add Surface Go battery quirk 



The Elantech touchscreen/digitizer in the Surface Go mistakenly reports
having a battery. This results in a low battery message every time you
try to use the pen.

This patch adds a quirk to ignore the non-existent battery and
gets rid of the false low battery messages.

Signed-off-by: default avatarZoltan Tamas Vajda <zoltan.tamas.vajda@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent f8e5388a

drivers/hid/hid-ids.h

+1 −0
Original line number Diff line number Diff line
@@ -396,6 +396,7 @@ 
#define USB_DEVICE_ID_HP_X2_10_COVER	0x0755

#define I2C_DEVICE_ID_HP_SPECTRE_X360_15	0x2817

#define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN	0x2706

#define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN	0x261A



#define USB_VENDOR_ID_ELECOM		0x056e

#define USB_DEVICE_ID_ELECOM_BM084	0x0061

drivers/hid/hid-input.c

+2 −0
Original line number Diff line number Diff line
@@ -326,6 +326,8 @@ static const struct hid_device_id hid_battery_quirks[] = { 
	  HID_BATTERY_QUIRK_IGNORE },

	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),

	  HID_BATTERY_QUIRK_IGNORE },

	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN),

	  HID_BATTERY_QUIRK_IGNORE },

	{}

};