amixer_rsc_get_ctrl_blk
int (*amixer_rsc_get_ctrl_blk)(void **rblk);
.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
err = hw->amixer_rsc_get_ctrl_blk(&rsc->ctrl_blk);