[Solved] resume from suspend via keyboard

[rayandrews]

With bullseye this line in /etc/rc.local worked:

echo enabled > /sys/bus/usb/devices/usb3/power/

... to enable a keypress to wake up the system from suspend. Doesn't work in bookworm. These other efforts were suggested: (hopefully adding resume via mouse as well as keyboard):

echo enabled > /sys/bus/usb/devices/5-2/power/wakeup
echo enabled > /sys/bus/usb/devices/8-1/power/wakeup

... or:

echo enabled > /sys/class/usbmisc/hiddev0/power/wakeup
echo enabled > /sys/class/usbmisc/hiddev1/power/wakeup

... but nothing works. Is this functionality still available?

[fabien]

/sys/bus/usb/devices/usb3/power/ is a directory, you can't echo to it.

Code: Select all

$> ls /sys/bus/usb/devices/usb3/power/
active_duration  autosuspend_delay_ms  level                runtime_enabled         runtime_usage       wakeup_active        wakeup_expire_count  wakeup_total_time_ms
async            connected_duration    runtime_active_kids  runtime_status          wakeup              wakeup_active_count  wakeup_last_time_ms
autosuspend      control               runtime_active_time  runtime_suspended_time  wakeup_abort_count  wakeup_count         wakeup_max_time_ms

try

Code: Select all

#> echo "enabled" >/sys/bus/usb/devices/usb3/power/wakeup

?

[rayandrews]

@fabien: my first quote there was mistyped but thanks for noticing.

Glorious success:

https://www.makeuseof.com/wake-your-lin ... b-devices/

... they've just made it a wee bit harder, like they do:

echo enabled > /sys/bus/usb/devices/5-2/power/wakeup
echo enabled > /sys/bus/usb/devices/8-1/power/wakeup
echo enabled > /sys/bus/usb/devices/usb5/power/wakeup
echo enabled > /sys/bus/usb/devices/usb8/power/wakeup

... seems you now have to wake up the port *and* the device on the port.