I've had a closer look at the commit which caused the regression and it looks
like there were two places where fepriv->parameters_in was assigned to
fepriv->parameters_out. So I've updated my patch accordingly.
Cheers,
Chris
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 23:16:03.000000000 +0100
@@ -143,6 +143,8 @@
static void dvb_frontend_wakeup(struct dvb_frontend *fe);
static int dtv_get_frontend(struct dvb_frontend *fe,
struct dvb_frontend_parameters *p_out);
+static int dtv_property_legacy_params_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p);
static bool has_get_frontend(struct dvb_frontend *fe)
{
@@ -695,6 +697,7 @@
fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
fepriv->delay = HZ / 2;
}
+ dtv_property_legacy_params_sync(fe, &fepriv->parameters_out);
fe->ops.read_status(fe, &s);
if (s != fepriv->status) {
dvb_frontend_add_event(fe, s); /* update event list */
@@ -1831,6 +1834,13 @@
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
