Method
ALSACtlCardread_elem_tlv
Declaration [src]
gboolean
alsactl_card_read_elem_tlv (
ALSACtlCard* self,
const ALSACtlElemId* elem_id,
guint32* const* container,
gsize* container_count,
GError** error
)
Description [src]
Read Type/Length/Value data from element pointed by the identifier and fulfil the given array of bytes with the data.
The call of function executes ioctl(2) system call with SNDRV_CTL_IOCTL_TLV_READ command for
ALSA control character device.
Parameters
elem_id |
ALSACtlElemId |
| The data is owned by the caller of the function. | |
container |
An array of guint32* |
The array with qudalets for Type-Length-Value data. |
|
| The argument will be modified by the function. | |
The length of the array is specified in the container_count argument. | |
| The instance takes ownership of the data, and is responsible for freeing it. | |
container_count |
gsize* |
The number of quadlets in the container. |
|
| The argument will be modified by the function. | |
error |
GError ** |
The return location for a GError*, or NULL. |