Hi, I am working on enabling the backlight brightness tuning through the GUI on an AM437xevm. The sysfs file /sys/class/backlight/backlight.10/brightness can be used to adjust the brightness through the shell, but the GUI fails to open this file, despite it being RW and owned by system:
ls -l /sys/class/backlight/backlight.10/brightness -rw-r--r-- system system 4096 2000-01-01 00:00 brightness The failure appears in logcat: I/lights ( 2163): write_int failed to open /sys/class/backlight/backlight. 10/brightness Furthermore, PID 2163 (system_server) is run as the system user: # ps 2163 USER PID PPID VSIZE RSS WCHAN PC NAME system 2163 1433 580812 43188 ffffffff 400d77cc S system_server What can be the issue? -- -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting --- You received this message because you are subscribed to the Google Groups "android-porting" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
