On Tue, May 31, 2022 at 8:44 PM Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com wrote:
I am looking for any existing user space test utilities to test SOUNDWIRE SUBSYSTEM in Linux kernel. Can someone please point me to this.
There are no specific userspace utilities to test the bus itself, you can use existing alsa-lib/alsa-utils applications to play/capture audio and check for events, i.e. aplay, arecord, speaker-test, amixer, alsamixer, evtest
alsa-lib/alsa-utils applications can be used for transmitting audio data. How to transmit non-audio data over the Soundwire interface?
The Intel manager driver provides a set of debugfs features to e.g. inject a parity error, bad command or test for signal integrity with the PRBS data generation, but that's low-level for hardware integration purposes.