Re: [alsa-devel] [PATCH] pcm: softvol: add support for S24_LE

Jörg Krause wrote:

Tested with a Wolfson WM8524 DAC on a i.MX6UL board running Linux version 4.13.0-next-20170907.

• case SND_PCM_FORMAT_S24_LE:

• /* 24bit samples, fallthrough */
  

  case SND_PCM_FORMAT_S32_LE:

S24_LE cannot be handled with the same algorithm as S32_LE.

I suspect that the hardware does not actually use S24_LE, and that the driver uses the wrong label for this format. Please describe exactly how the 24-bit sample is aligned into the 32-bit memory cell.

Regards, Clemens