Commit 8546708c authored Sep 25, 2020 by Dmitry Torokhov Committed by Greg Kroah-Hartman Oct 29, 2020

HID: hid-input: fix stylus battery reporting



[ Upstream commit 505f394fa239cecb76d916aa858f87ed7ea7fde4 ]

With commit 4f3882177240 hid-input started clearing of "ignored" usages
to avoid using garbage that might have been left in them. However
"battery strength" usages should not be ignored, as we do want to
use them.

Fixes: 4f3882177240 ("HID: hid-input: clear unmapped usages")
Reported-by: Kenneth Albanowski <kenalba@google.com>
Tested-by: Kenneth Albanowski <kenalba@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 1e375b1d

drivers/hid/hid-input.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -796,7 +796,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
		case 0x3b: /* Battery Strength */
		hidinput_setup_battery(device, HID_INPUT_REPORT, field);
		usage->type = EV_PWR;
		goto ignore;
		return;

		case 0x3c: /* Invert */
		map_key_clear(BTN_TOOL_RUBBER);
		@@ -1052,7 +1052,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
		case HID_DC_BATTERYSTRENGTH:
		hidinput_setup_battery(device, HID_INPUT_REPORT, field);
		usage->type = EV_PWR;
		goto ignore;
		return;
		}
		goto unknown;