[RFC PATCH 1/8] docs: Add block device LED trigger documentation
arequipeno at gmail.com
Thu Jul 29 11:52:06 EDT 2021
On 7/28/21 10:09 PM, Valdis Klētnieks wrote:
>> + # cat /sys/class/block/led_trigger_list
>> + baz: 0
>> + bar: 0
>> + foo: 0
> This looks like an abuse of the "one entry one value" rule for sysfs.
> Perhaps this should be a directory /sys/class/block/defined_triggers/
> and separate files under that for foo, bar, and baz? That would probably
> make reference counting a lot easier as well....
Indeed it is.
Funny that you should mention using a subdirectory. I originally wanted
to put all of the trigger-related stuff into
/sys/class/block/led_triggers/, but I couldn't find any API to create a
subdirectory for *class* attributes (only for device attributes), nor do
I see any such subdirectories on my system.
# find /sys/class -type d | egrep '^/sys/class/[^/]+/'
Is is possible to create subdirectories for class attributes?
In Soviet Russia, Google searches you!
More information about the Kernelnewbies