Commit 82eb1219 authored Aug 11, 2007 by Jiri Kosina

HID: ignore all non-LED usages in output fields in hid-input



We have to ignore all non-LED usages in output fields if the
report descriptor of the device specifies any. If we don't do
so, the devices which contain the same usages both in input and
output reports with different parameters will mess things up. In
hid-input, we currently care only for the input usages, with exception
for LEDs. All other output usages should be properly handled by
appropriate force-feedback driver.

Fixes auto-calibration for Saitek Cyborg Evo Force joystick.

Reported-by: Renato Golin <rengolin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent 77b29662

drivers/hid/hid-input.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -355,6 +355,13 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
		if (field->flags & HID_MAIN_ITEM_CONSTANT)
		goto ignore;

		/* only LED usages are supported in output fields */
		if (field->report_type == HID_OUTPUT_REPORT &&
		(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
		dbg_hid_line(" [non-LED output field] ");
		goto ignore;
		}

		switch (usage->hid & HID_USAGE_PAGE) {

		case HID_UP_UNDEFINED:

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