[AudioI] read error
Matt Flax
matt at audioinjector.net
Tue Jul 12 05:56:03 UTC 2022
It looks like it should work.
The fact that ALSA/Linux finds the card and sets it up means that you
have got I2C working.
Perhaps there is a clocking I2S bus issue ? How long does it take before
it reports the error ?
Matt
On 12/7/22 15:34, mark via People wrote:
> Excited to add audio to my Pi, and just finished assembling the boards.
> I see the device listed with arecord -l.
> But, when I go to capture there is a read error. Any suggestions on
> how to troubleshoot appreciated.
>
> pi at cam-09:~ $ sudo arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: audioinjectorul [audioinjector-ultra], device 0:
> bcm2835-i2s-cs4265-dai1 cs4265-dai1-0 [bcm2835-i2s-cs4265-dai1
> cs4265-dai1-0]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> pi at cam-09:~ $ arecord --device="hw:0,0" -c2 -r 48000 -f S32_LE -t wav
> -V stereo -d 30 -v file_stereo.wav
> Recording WAVE 'file_stereo.wav' : Signed 32 bit Little Endian, Rate
> 48000 Hz, Stereo
> Hardware PCM card 0 'audioinjector-ultra' device 0 subdevice 0
> Its setup is:
> stream : CAPTURE
> access : RW_INTERLEAVED
> format : S32_LE
> subformat : STD
> channels : 2
> rate : 48000
> exact rate : 48000 (48000/1)
> msbits : 32
> buffer_size : 24000
> period_size : 6000
> period_time : 125000
> tstamp_mode : NONE
> tstamp_type : MONOTONIC
> period_step : 1
> avail_min : 6000
> period_event : 0
> start_threshold : 1
> stop_threshold : 24000
> silence_threshold: 0
> silence_size : 0
> boundary : 1572864000
> appl_ptr : 0
> hw_ptr : 0
> arecord: pcm_read:2152: read error: Input/output error
> pi at cam-09:~ $
>
>
>
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