$ cat /proc/asound/VF0790/stream0 
Creative Technology Ltd. Live! Cam Chat HD VF0790 at usb-0000:00:14.0-1, high s : USB Audio

Capture:
  Status: Stop
  Interface 3
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 8000
    Data packet interval: 1000 us
    Bits: 16
    Channel map: FL FR
  Interface 3
    Altset 2
    Format: S16_LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 16000
    Data packet interval: 1000 us
    Bits: 16
    Channel map: FL FR
  Interface 3
    Altset 3
    Format: S16_LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 44100
    Data packet interval: 1000 us
    Bits: 16
    Channel map: FL FR
  Interface 3
    Altset 4
    Format: S16_LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 48000
    Data packet interval: 1000 us
    Bits: 16
    Channel map: FL FR
  Interface 3
    Altset 5
    Format: S24_3LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 8000
    Data packet interval: 1000 us
    Bits: 24
    Channel map: FL FR
  Interface 3
    Altset 6
    Format: S24_3LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 16000
    Data packet interval: 1000 us
    Bits: 24
    Channel map: FL FR
  Interface 3
    Altset 7
    Format: S24_3LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 44100
    Data packet interval: 1000 us
    Bits: 24
    Channel map: FL FR
  Interface 3
    Altset 8
    Format: S24_3LE
    Channels: 2
    Endpoint: 0x82 (2 IN) (ASYNC)
    Rates: 48000
    Data packet interval: 1000 us
    Bits: 24
    Channel map: FL FR