On Tue, 08 Jun 2021 16:20:07 +0530, Muni Sekhar said:
> $ arecord --device hw:1,0 --channels 1 --format S16_LE --rate 32000_Hz x.wav
> Recording WAVE 'x.wav' : Signed 16 bit Little Endian, Rate 32000 Hz, Mono
> arecord: pcm_read:2032: read error: Input/output error
Always check the obvious stuff
Hello All
I am looking for the CMA allocator in current kernel, when I check the
videobuf2-dma-contig.c and drm_gem_cma_helper.c, they just call
dma_alloc_wc()/dma_alloc_attrs() without any flag that request a contiguous
pages.
I could hardly find a driver use the flag
