pwm: Adapt sysfs API documentation to reality
Most low-level PWM drivers support duty_cycle == period, and so does the
sysfs API. Also polarity can be changed for enabled PWMs since commit
39100ceea7
("pwm: Switch to the atomic API").
Reported-by: Jens Gehrlein <J.Gehrlein@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230911154454.675057-1-u.kleine-koenig@pengutronix.de
This commit is contained in:
parent
02f9998754
commit
3240c37567
|
@ -111,13 +111,13 @@ channel that was exported. The following properties will then be available:
|
|||
|
||||
duty_cycle
|
||||
The active time of the PWM signal (read/write).
|
||||
Value is in nanoseconds and must be less than the period.
|
||||
Value is in nanoseconds and must be less than or equal to the period.
|
||||
|
||||
polarity
|
||||
Changes the polarity of the PWM signal (read/write).
|
||||
Writes to this property only work if the PWM chip supports changing
|
||||
the polarity. The polarity can only be changed if the PWM is not
|
||||
enabled. Value is the string "normal" or "inversed".
|
||||
the polarity.
|
||||
Value is the string "normal" or "inversed".
|
||||
|
||||
enable
|
||||
Enable/disable the PWM signal (read/write).
|
||||
|
|
Loading…
Reference in New Issue