In fact, the following patch works for me. Signed-off-by: Chris Rankin <rankincj@xxxxxxxxx>
--- linux-3.3/drivers/media/dvb/dvb-core/dvb_frontend.c.orig 2012-04-06 20:16:02.000000000 +0100 +++ linux-3.3/drivers/media/dvb/dvb-core/dvb_frontend.c 2012-04-06 21:17:38.000000000 +0100 @@ -1831,6 +1831,13 @@ return -EINVAL; /* + * Initialize output parameters to match the values given by + * the user. FE_SET_FRONTEND triggers an initial frontend event + * with status = 0, which copies output parameters to userspace. + */ + dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); + + /* * Be sure that the bandwidth will be filled for all * non-satellite systems, as tuners need to know what * low pass/Nyquist half filter should be applied, in
