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Peter Stuge peter at stuge.seDimitri Stolnikov wrote: >> It would be nice if the "audio_alsa_source[hw:X]: Device or resource busy" >> could be fixed. >> The problem with that bug is you can't even interogate the device driver >> for supported gain, etc... If the device is used by another application. > > Not sure we can address that problem in gr-osmosdr, since the error comes > from gnuradio-fcd library. Its very similar to how the UHD devices behave, > you have to open the device to be able to query available sample rates etc. > Imagine that a user specifies a custom master clock rate via mcr= argument > (stored in the EEPROM) in UHD, the available sample rates would be > different from their default values. But the library has to open the device > first, query the mcr value from the hardware and then return the available > rates, for example. > > On other words, if a device is being used, you loose. At least on Linux it's possible for multiple applications to perform control transfers to the same device in parallel. //Peter