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V4L/DVB (12600): dvb-usb-remote: return KEY_RESERVED if there's free space for new keys
The input subsystem checks if get_keycode works for a scan code. Due to that, we need to return a valid value when there's some space at the table that can be used by a scancode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -22,6 +22,19 @@ static int dvb_usb_getkeycode(struct input_dev *dev,
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*keycode = keymap[i].event;
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return 0;
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}
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/*
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* If is there extra space, returns KEY_RESERVED,
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* otherwise, input core won't let dvb_usb_setkeycode
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* to work
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*/
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for (i = 0; i < d->props.rc_key_map_size; i++)
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if (keymap[i].event == KEY_RESERVED ||
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keymap[i].event == KEY_UNKNOWN) {
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*keycode = KEY_RESERVED;
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return 0;
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}
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return -EINVAL;
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}
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