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HID: asus: Only set EV_REP if we are adding a mapping

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[ Upstream commit 4e4c60f826772dfeaacdf718f64afa38f46b6875 ]

Make asus_input_mapping() only set EV_REP if we are adding a mapping.

The T100CHI bluetooth keyboard dock has a few input reports for which
we do not create any mappings (these input-reports are present in the
descriptors but never send).

The hid-asus code relies on the HID core not creating input devices for
input-reports without any mappings. But the present of the EV_REP but
counts as a mapping causing 6 /dev/input/event# nodes to be created for
the T100CHI bluetooth keyboard dock. This change brings the amount of
created /dev/input/event# nodes / input-devices down to 4.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Stable-dep-of: 4ab3a086d10e ("HID: asus: use spinlock to safely schedule workers")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede 2020-04-28 16:22:49 +02:00 • committed by Greg Kroah-Hartman
commit 63792d0ae9
1 changed files with 2 additions and 2 deletions
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4
drivers/hid/hid-asus.c
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@ -714,7 +714,6 @@ static int asus_input_mapping(struct hid_device *hdev,
/* ASUS-specific keyboard hotkeys */
if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) {
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
@ -757,11 +756,11 @@ static int asus_input_mapping(struct hid_device *hdev,
if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
drvdata->enable_backlight = true;
set_bit(EV_REP, hi->input->evbit);
return 1;
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xff01: asus_map_key_clear(BTN_1); break;
case 0xff02: asus_map_key_clear(BTN_2); break;
@ -784,6 +783,7 @@ static int asus_input_mapping(struct hid_device *hdev,
return 0;
}
set_bit(EV_REP, hi->input->evbit);
return 1;
}