enum snd_ctl_ext_access_t

The access type bits stored in get_attribute callback

#include <control_external.h>

enum snd_ctl_ext_access_t {
    SND_CTL_EXT_ACCESS_READ          =(1<<0),
    SND_CTL_EXT_ACCESS_WRITE         =(1<<1),
    SND_CTL_EXT_ACCESS_READWRITE     =(3<<0),
    SND_CTL_EXT_ACCESS_VOLATILE      =(1<<2),
    SND_CTL_EXT_ACCESS_TLV_READ      =(1<<4),
    SND_CTL_EXT_ACCESS_TLV_WRITE     =(1<<5),
    SND_CTL_EXT_ACCESS_TLV_READWRITE =(3<<4),
    SND_CTL_EXT_ACCESS_TLV_COMMAND   =(1<<6),
    SND_CTL_EXT_ACCESS_INACTIVE      =(1<<8),
    SND_CTL_EXT_ACCESS_TLV_CALLBACK  =(1<<28),
};