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Hi, I have a codec with 2 Inputs. I have Mic connected to one and line in connected to the other. My arecord list shows only one card i.e. hw:0,0 ...
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  1. 02-08-2013 #1
    greenadventurer9
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    ALSA Codec Issue

    Hi,
    I have a codec with 2 Inputs. I have Mic connected to one and line in connected to the other. My arecord list shows only one card i.e. hw:0,0 with one subdevice. I can switch between the inputs by writing to the codec registers in the driver file. I wanted to know how could I switch between these inputs from user space or if anyone knows how to add a subdevice in ALSA in the driver code?

    Also is there a way to write to codec registers from alsa user space?
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  2. 02-09-2013 #2
    Rubberman
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    This may help: Linux I/O port programming mini-HOWTO: Using I/O ports in C programs
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    Just remember, Semper Gumbi - always be flexible!
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