osd_cmd_t
return av7110_osd_cmd(av7110, (osd_cmd_t *)parg);
int av7110_osd_cmd(struct av7110 *av7110, osd_cmd_t *dc)
int av7110_osd_cmd(struct av7110 *av7110, osd_cmd_t *dc);
#define OSD_SEND_CMD _IOW('o', 160, osd_cmd_t)