carl9170_cmd_buf
cmd = carl9170_cmd_buf(ar, CARL9170_CMD_REBOOT_ASYNC, 0);
cmd = carl9170_cmd_buf(ar, CARL9170_CMD_BCN_CTRL_ASYNC,
cmd = carl9170_cmd_buf(ar, CARL9170_CMD_PSM_ASYNC,
__cmd = carl9170_cmd_buf(__carl, CARL9170_CMD_WREG_ASYNC, \
struct carl9170_cmd *carl9170_cmd_buf(struct ar9170 *ar,