Difference between revisions of "RidgeRun LeopardBoard SDK Hints"
(Created page with '== Solutions to known issues == === 'division by zero in kernel' error when I try to use ALSA input === This is a known issue that has been discussed on the ASOC mailing list. …') |
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== Solutions to known issues == | == Solutions to known issues == | ||
| − | === 'division by zero in kernel | + | === 'division by zero' in kernel error when I try to use ALSA input === |
This is a known issue that has been discussed on the ASOC mailing list. The problem is | This is a known issue that has been discussed on the ASOC mailing list. The problem is | ||
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works after running arecord or aplay first. | works after running arecord or aplay first. | ||
| − | Apply the | + | Apply the [[Media:Asoc-davinci-pcm.patch]] to the kernel 2.6.29 to resolve this issue. |
Revision as of 11:23, 10 December 2009
Solutions to known issues
'division by zero' in kernel error when I try to use ALSA input
This is a known issue that has been discussed on the ASOC mailing list. The problem is that the function davinci_pcm_enqueue_dma performs this operations:
data_type = prtd->params->data_type; count = period_size / data_type;
The first time, data_type is set to zero, so we get the error Division by zero in kernel. This is the reason why the pipe arecord | aplay works after running arecord or aplay first.
Apply the Media:Asoc-davinci-pcm.patch to the kernel 2.6.29 to resolve this issue.
