On 25.11.2022 11:19, Krzysztof Kozlowski wrote: >> + $ ls -l /sys/bus/i2c/devices/xxxx/pattern0/ >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 clear_leds >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 fall_time >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 loop_begin >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 loop_end_on >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 max_breathing_level >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 min_breathing_level >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 mode >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 off_time >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 on_time >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 ramp >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 repeat >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 rise_time >> + -r--r--r-- 1 root root 4096 Jan 1 00:00 running >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 select_leds >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 start >> + -rw-r--r-- 1 root root 4096 Jan 1 00:00 toggle > > sysfs documentation goes to Documentation/ABI/ Should I add it to Documentation/ABI/testing/sysfs-class-led-driver-aw200xx? Is my understanding correct? Is KernelVersion parameter required? >> + chip = devm_kzalloc(&client->dev, >> + struct_size(chip, leds, count), > > sizeof(*chip) Unfortunately, it will not work. Because I want to calculate the whole size of chip structure, it has flexible array member inside. -- Best Regards, Kurbanov Martin