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HID: penmount: report only one button for PenMount 6000 USB touchscreen controller 

PenMount 6000 USB resistive touchscreen controller reports it has three
buttons, while in reality it doesn't have any and doesn't support active
styli, and only generates touch events.

In penmount_input_mapping(), map only the first button (with code 0),
ignore the rest.

Signed-off-by: Andrew Shadura <andrew.shadura@collabora.co.uk>
Tested-by: Christian Gmeiner <c.gmeiner@bachmann.info
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
steinar/wifi_calib_4_9_kernel
Andrew Shadura 2015-10-29 16:09:49 +01:00 committed by Jiri Kosina
parent c2848f2eef
commit 5f66872cbd
1 changed files with 6 additions and 2 deletions
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8
drivers/hid/hid-penmount.c
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@ -23,8 +23,12 @@ static int penmount_input_mapping(struct hid_device *hdev,
struct hid_usage *usage, unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
if (((usage->hid - 1) & HID_USAGE) == 0) {
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
} else {
return -1;
}
}
return 0;