struct dtv_properties prop;
int rc;
- if (sys == parms->current_sys)
- return 0;
+ if (sys != parms->current_sys) {
+ /* Disable LNBf power */
+ if (is_satellite(parms->current_sys) &&
+ !is_satellite(sys))
+ dvb_fe_sec_voltage(parms, 0, 0);
- /* Disable LNBf power */
- if (is_satellite(parms->current_sys) &&
- !is_satellite(sys))
- dvb_fe_sec_voltage(parms, 0, 0);
-
- /* Can't change standard with the legacy FE support */
- if (parms->legacy_fe)
- return EINVAL;
+ /* Can't change standard with the legacy FE support */
+ if (parms->legacy_fe)
+ return EINVAL;
- dvb_prop[0].cmd = DTV_DELIVERY_SYSTEM;
- dvb_prop[0].u.data = sys;
- prop.num = 1;
- prop.props = dvb_prop;
+ dvb_prop[0].cmd = DTV_DELIVERY_SYSTEM;
+ dvb_prop[0].u.data = sys;
+ prop.num = 1;
+ prop.props = dvb_prop;
- if (ioctl(parms->fd, FE_SET_PROPERTY, &prop) == -1) {
- dvb_perror("Set delivery system");
- return errno;
+ if (ioctl(parms->fd, FE_SET_PROPERTY, &prop) == -1) {
+ dvb_perror("Set delivery system");
+ return errno;
+ }
}
rc = dvb_add_parms_for_sys(parms->dvb_prop,