Revision 7b074a22
| ID | 7b074a22dab4bdda9864b933f1bc811a3db42845 |
usb: hid: change serial number to "42".
It would be nice to have some way to signal our hid devices support
remote wakeup. There is a descriptor bit for that of course. Problem
with using is one is that older qemu versions used to set the bit even
though they did not support remote wakeup. Bummer.
This patch changes the serial number of our hid devices from "1" to "42"
to signal "it is safe to enable remote wakeup". The serial number was
choosen because it isn't used for anything and it is available in sysfs
so it is easy to match it using udev rules like this:
ACTION=="add", SUBSYSTEM=="usb", \
ATTR{product}=="QEMU USB Tablet", ATTR{serial}=="42", \
RUN+="usb_enable_autosuspend %p"
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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