Write pwm export() failed for id xx "with open gpiochip0"

[idalmasso]

Write pwm export() failed for id xx "with open gpiochip0"

[gen2thomas]

Hi @idalmasso , thanks for finding and report this issue. I will have a look in the next few days.

[gen2thomas]

Hi @idalmasso , the PWM usage has changed a bit since 2.3.0.
Until 2.2.0 the pi-blaster was used by default. Now the internal PWMs are used by default and the usage of pi-blaster must be forced by "adaptors.WithPWMUsePiBlaster()". I missed to add this to the migration guide, but it is described in the README.

If it will not work , please can you provide your program or at least the part for creating the raspi-adaptor and the lines which creates the error output.

Thanks Thomas

[idalmasso]

Hello @gen2thomas , thanks for your answer. Yes, I just retried with the WithPWMUsePiBlaster and it seems to be working fine, sorry I had to improve my RTFM capabilities, sorry to have made you lose time!

[gen2thomas]

You are welcome, good to hear that it's working now.