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<title>Generic Error Codes</title>
<table frame="none" pgwide="1" id="gen-errors">
<title>Generic error codes</title>
<tgroup cols="2">
&cs-str;
<tbody valign="top">
<row>
<entry>EBUSY</entry>
<entry>The ioctl can't be handled because the device is busy. This is
typically return while device is streaming, and an ioctl tried to
change something that would affect the stream, or would require the
usage of a hardware resource that was already allocated. The ioctl
must not be retried without performing another action to fix the
problem first (typically: stop the stream before retrying).</entry>
</row>
<row>
<entry>EINVAL</entry>
<entry>The ioctl is not supported by the driver, actually meaning that
the required functionality is not available.</entry>
</row>
<row>
<entry>ENOMEM</entry>
<entry>There's not enough memory to handle the desired operation.</entry>
</row>
<row>
<entry>ENOSPC</entry>
<entry>On USB devices, the stream ioctl's can return this error meaning
that this request would overcommit the usb bandwidth reserved
for periodic transfers (up to 80% of the USB bandwidth).</entry>
</row>
</tbody>
</tgroup>
</table>
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