On 09/29/2018 02:19 AM, Gottfried Haider wrote: > Hello Thierry & Fabrice, > >>> Still, it is possible to send uevent (KOBJ_CHANGE) on pwmchipN device, >>> to notify of a change, e.g. pwmX channel being exported/unexported. > > I tested this patch, and I am happy to report that it works with the > udev rule that Raspbian (Raspberry Pi's Debian derivative) has in > place: > > SUBSYSTEM=="pwm*", PROGRAM="/bin/sh -c '\ > chown -R root:gpio /sys/class/pwm && chmod -R 770 /sys/class/pwm;\ > chown -R root:gpio > /sys/devices/platform/soc/*.pwm/pwm/pwmchip* && chmod -R 770 > /sys/devices/platform/soc/*.pwm/pwm/pwmchip*\ > '" > > > So while I can't comment on the uevent semantics, it would solve what > the original patch attempted to enable (non-root use of pwm). > > Tested-by: Gottfried Haider <gottfried.hai...@gmail.com>
Hi Gottfried, Thierry, Thanks for testing. I just sent a new series with: - revert patch - additional patch with proposed uevent notification (change) on pwmchip. Best Regards, Fabrice > > Best, > Gottfried >
