On Thu, Jul 22, 2010 at 01:57:16PM +0300, Peter Ujfalusi wrote: > I think the whole SNDRV_PCM_INFO_HALF_DUPLEX bit cleaning/setting can be left > out as such. That would be even simpler, of course! > My point is, that in wl1273_startup, the driver anyway will refuse the non > correct stream for FM mode. It is checking, that only playback can be started, > when the FM is in TX mode, and allows only capture, if the chip has been > configured to FM RX mode. In BT mode the codec can work in full duplex. ...and hopefully userspace won't be trying to do any of the unsupported things anyway at a higher level than ALSA so that's probably OK. I guess in principle the device can support full duplex even with FM, it's just that the output is going to get discarded so it's not *useful* so there's not such a need to make sure userspace is told about the restriction anyway - the CPU driver can do the DMA which is all that's directly visible to the application. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
