On Sat, 2015-08-15 at 11:22 +0200, Michele Cane wrote:
> Package: qcontrol
> Version: 0.5.4-5
> Severity: normal
>
> Dear Maintainer,
Thanks for the report.
> starting with kernel 4.0 when I issue the command "sudo lcd-backlight off" it
> results in a Command not found.
> I tried other qcontrol commnands such as shortbuzz and usbled and they work.
>
> If I revert to kernel 3.16 the command works.
This suggests that the a125 module is not being loaded.
In your qcontrol.conf there should be a:
gpio_select(45, {
function () register("a125", "/dev/ttyS0") end,
nil,
nil})
Which registers the module if gpio 45 is in the appropriate state.
Unfortunately I've gone away and left my QNAP box at home turned off :-/
So a few questions:
Are there any messages in daemon.log relating to qcontrol and startup?
Do you have a /dev/ttyS0 device?
Do you have "/sys/class/gpio/gpio45/value" or the
"/sys/class/gpio/gpio45" directory generally? If not then does "echo 45
> /sys/class/gpio/export" cause those to appear?
If you replace the whole gpio_select block with just the:
register("a125", "/dev/ttyS0")
bit (i.e. register it unconditionally) then does it work? This would
indicate that gpio_select has been broken somehow.
It's possible that what we have here is a race with the device nodes
being created vs qcontrol starting. This was supposed to have been
worked around by #781886 though.
Ian.
