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Subject: Don't call G_TUNER unless actually performing a tuning related call Author: Devin Heitmueller <dheitmuel...@kernellabs.com> Date: Fri Jun 14 09:59:26 2013 -0400 Making G_TUNER calls can take a long time on some tuners, in particular those that load firmware or do power management. As a result, we don't want to call G_TUNER unless the user is actually doing a tuning related call. The current code makes a G_TUNER call regardless of what command the user is attempting to perform. Problem originally identified on the HVR-950q, where even doing operations like toggling from the composite to the s-video input would take over 1000ms. Signed-off-by: Devin Heitmueller <dheitmuel...@kernellabs.com> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com> utils/v4l2-ctl/v4l2-ctl-tuner.cpp | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) --- http://git.linuxtv.org/v4l-utils.git?a=commitdiff;h=0b54aed8eedc25ecb0810609f9cc4359f33542ed diff --git a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp index ebe74d3..16e1652 100644 --- a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp +++ b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp @@ -254,6 +254,13 @@ void tuner_set(int fd) V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; double fac = 16; + if (!options[OptSetFreq] && !options[OptSetTuner] && !options[OptListFreqBands] + && !options[OptSetModulator] && !options[OptFreqSeek]) { + /* Don't actually call G_[MODULATOR/TUNER] if we don't intend to + actually perform any tuner related function */ + return; + } + if (capabilities & V4L2_CAP_MODULATOR) { type = V4L2_TUNER_RADIO; modulator.index = tuner_index; _______________________________________________ linuxtv-commits mailing list linuxtv-commits@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
