On 16/02/2017 22:00, Ulderico Arcidiaco wrote: > Reading the emails on this issue, it looks like a low level USB reset > due to I/O errors. And this causes the audio devices to change order > or so, right? Then, why do you think it is the Silicon Labs driver > that causes this? Isn't that driver only used to interface the CP210 > UART to USB bridge chip (the serial port for CAT stuff), not the > overall low level USB protocol and the audio channels? > > You can indeed uninstall the Silicon Labs driver and still use the USB > connection for audio I/O with your rig. In fact, if you suspect the > Silicon Labs driver, you should actually try removing it, and using > the USB for audio only, using vox to TX with your rig. If this works, > then maybe the Silicon Labs driver is the bad guy in town, otherwise > it is a different problem.
Hi Ulde & all, this is good advice and is consistent with at least one Mac OS X user solving this issue of unprompted USB audio device switches by installing an older VCP driver. Note that the SILabs VCP driver is not the problem in isolation, there is definitely an o/s version dependency as well since this issue only started from OS X 10.10 onwards. 73 Bill G4WJS. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
