Messages in this thread | | | Subject | Re: [PATCH v10 02/18] counter: Documentation: Add Generic Counter sysfs documentation | From | David Lechner <> | Date | Tue, 9 Apr 2019 08:12:57 -0500 |
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On 4/8/19 4:55 PM, Pavel Machek wrote: > > pavel@amd:~$ cat /sys/power/state > freeze mem disk > > And we use [] to mark current selection:
I know this is used elsewhere, but I don't think it is a good pattern to copy. Parsing it from user-space is annoying. Also it breaks the sysfs rule of "one item per file" since it tells us two things - the list of possible values _and_ the current active value.
> > pavel@amd:~$ cat /sys/class/leds/tpacpi\:\:thinkvantage/trigger > [none] bluetooth-power rfkill-any rfkill-none kbd-scrolllock > kbd-numlock kbd-capslock kbd-kanalock kbd-shiftlock kbd-altgrlock > kbd-ctrllock kbd-altlock kbd-shiftllock kbd-shiftrlock kbd-ctrlllock > kbd-ctrlrlock AC-online BAT0-charging-or-full BAT0-charging BAT0-full > BAT0-charging-blink-full-solid rfkill0 phy0rx phy0tx phy0assoc > phy0radio phy0tpt mmc0 timer heartbeat audio-mute audio-micmute > rfkill1 > > Note this only works if you have less than PAGE_SIZE of entries... and > will never have more. > > Pavel >
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