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Subject: [media] tuner-core: don't set has_signal/get_afc if not supported Author: Hans Verkuil <[email protected]> Date: Mon Mar 25 08:14:13 2013 -0300 If the tuner frontend does not support get_rf_strength, then don't set the has_signal callback. Ditto for get_afc. Both callbacks overwrite the signal and afc fields of struct v4l2_tuner but that should only happen if the tuner can actually detect this. If it can't, then it should leave those fields alone so other subdevices can try and detect the signal/afc. This fixes the bug where the au8522 detected a signal and then tuner-core overwrote it with 0 since the xc5000 tuner does not support get_rf_strength. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/v4l2-core/tuner-core.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=106cf649d06c55b881cf4eadf2ca1a28a04d93aa diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c index f775768..dd8a803 100644 --- a/drivers/media/v4l2-core/tuner-core.c +++ b/drivers/media/v4l2-core/tuner-core.c @@ -253,7 +253,7 @@ static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg) static void tuner_status(struct dvb_frontend *fe); -static struct analog_demod_ops tuner_analog_ops = { +static const struct analog_demod_ops tuner_analog_ops = { .set_params = fe_set_params, .standby = fe_standby, .has_signal = fe_has_signal, @@ -453,6 +453,11 @@ static void set_type(struct i2c_client *c, unsigned int type, memcpy(analog_ops, &tuner_analog_ops, sizeof(struct analog_demod_ops)); + if (fe_tuner_ops->get_rf_strength == NULL) + analog_ops->has_signal = NULL; + if (fe_tuner_ops->get_afc == NULL) + analog_ops->get_afc = NULL; + } else { t->name = analog_ops->info.name; } _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
