10 Jul
2015
10 Jul
'15
7:13 p.m.
On 07/10/2015 04:35 AM, Raymond Yau wrote: [...]
What is the usage of runtime->dma_bytes in snd_pcm_hw_constraints_complete() in core/pcm_native.c ?
Was the usage similar to 128 bytes alignment ?
/* FIXME: remove */ if (runtime->dma_bytes) { err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, runtime->dma_bytes); if (err < 0) return err; }
The FIXME is probably correct. dma_bytes should always be 0 at that point. This is a freshly allocated runtime struct and dma_bytes only gets set once a buffer is allocated, which is done later on.
- Lars