PWM_Open Function
Header: #include <applibs/pwm.h>
Opens a PWM controller, and returns a file descriptor to use for subsequent calls.
int PWM_Open(PWM_ControllerId pwm);
Parameters
pwm
The zero-based index of the PWM controller to access. The maximum value permitted depends on the platform.
Errors
Returns -1 if an error is encountered and sets errno
to the error value.
- EACCES: access to the PWM interface is not permitted because the
pwm
parameter is not listed in the Pwm field of the application manifest.
Return value
Returns the file descriptor for the PWM controller if it was opened successfully, or -1 for failure, in which case errno
is set to the error value.
Application manifest requirements
To access a PWM controller, your application must identify it in the Pwm field of the application manifest.
Feedback
https://aka.ms/ContentUserFeedback.
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see:Submit and view feedback for