ALSA: request device to query its settings
Querying available buffersizes and sample-rates requires access to the device. Almost all ALSA devices are limited to a single user-space application so we unconditionally try to request access to the device.
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@ -346,8 +346,10 @@ AlsaAudioBackend::set_input_device_name (const std::string& d)
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_input_audio_device_info.valid = false;
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return 1;
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}
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_device_reservation.acquire_device (alsa_device.c_str ());
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/* device will be busy once used, hence cache the parameters */
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/* return */ get_alsa_device_parameters (alsa_device.c_str (), false, &_input_audio_device_info);
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_device_reservation.release_device ();
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return 0;
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}
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