On Mon, 2011-11-21 at 11:19 +0530, Rajeev kumar wrote:
Hello Mark
Could you please help me by answering these questions?
Best Regards Rajeev
Pls don't top-post!!
On 11/17/2011 7:05 PM, Rajeev kumar wrote:
Hello Mark
I have a single codec with playback and capture capability. We are using it for different i2s controller. Below are the details for that.
case 1: I2S controller-1: with playback and capture capability case 2: I2S controller-2: with playback capability only case 3: I2S controller-3: with capture capability only.
We are registering all the I2S controller with there respective capability.
In command 'aplay -l' or 'cat /proc/asound/pcm', among playback devices, capture device is also listed. This is true in case-1 but for case-2 and case-3 also it is showing the same behavior. According to my understanding it should not show the list of all devices i.e. in case of controller having playback capability it should show only playback devices not capture devices and vice versa. Please correct me if I am wrong.
So my questions are
- How to separate playback and capture devices in case-2 and case-3.
Are we need to register different codec for different i2s controller?
How asoc builds this is based on dailinks you have provided. If for the device 2 and device 3 the cpu and codec dais support both playback and capture devices, it will go ahead and register these device. The fact that for device 2 and device 3 capture is also registered suggests me that your cpu dais are not correct.
Would help if you post your code, esp the codec, cpu dais and dialinks.