From: "Mauro Carvalho Chehab" <mchehab@xxxxxxxxxx> > Now, get_frontend is an internal kAPI. If I'm not mistaken, it was > designed to be used between tuners and demods, for the cases where the > demod would need to know what was the bandwidth set at the tuner. > So, I'm OK if it returns the actually applied bandwidth, provided that > such value is not returned to userspace via DTV_BANDWIDTH_HZ. So, > props->bandwidth_hz should not be updated after its call. Good point. It might indeed be interesting for demod drivers, e.g. to adapt the AFC range setting to the (band)width of the signal delivered by the tuner (not that I know any driver which does, but hypothetically), but beyond that, it has no use. So I agree it should not be passed to userspace. But for the hypothetical use by the demod driver, the si2157 driver should return correct values, so the patch I submitted can remain as it is. Best Regards, -Robert Schlabbach
