Re: [PATCH v1 2/2] leds: add aw20xx driver

From: Martin Kurbanov
Date: Mon Nov 28 2022 - 13:09:25 EST


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