This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

snd_ctl_hw_info_t

Information about a sound card's hardware

Synopsis:

typedef struct snd_ctl_hw_info
{
    uint32_t    type;
    uint32_t    hwdepdevs;
    uint32_t    pcmdevs;
    uint32_t    mixerdevs;
    uint32_t    mididevs;
    uint32_t    timerdevs;
    int8_t      id[16];
    int8_t      abbreviation[16];
    int8_t      name[32];
    int8_t      longname[80];
    uint8_t     reserved[128];
}       snd_ctl_hw_info_t;

Description:

The snd_ctl_hw_info_t structure describes a sound card's hardware. You can get this information by calling snd_ctl_hw_info().

The members include:

type

The type of sound card. Deprecated; don't use this member.

hwdepdevs

The total number of hardware-dependent devices on this sound card. Deprecated; don't use this member.

pcmdevs

The total number of PCM devices on this sound card.

mixerdevs

The total number of mixer devices on this sound card.

mididevs

The total number of midi devices on this sound card. Not supported at this time; don't use this member.

timerdevs

The total number of timer devices on this sound card. Not supported at this time; don't use this member.

id

An ID string that identifies this sound card.

abbreviation

An abbreviated name for identifying this sound card.

name

A common name for this sound card.

longname

A unique, descriptive name for this sound card.

reserved

Reserved; this member must be filled with zeroes.

Classification:

QNX Neutrino

See also:

snd_ctl_hw_info()