bfgminer killing other USB devices sporadically

CuriousPanda

I have several USB serial devices connected, and recently (since updating to MacMiner 1.5, but not sure if it started exactly when I made the switch) my other apps have started dying - losing connection to their hardware. This does not happen every time, I can't figure out a 100% repro for it.

In the FPGA options window I have unselected all of the 'auto detect' boxes and added -S /dev/cu.usbserial-FTWWMIYE as my manual flag. 

This used to work, but now I'm seeing lines like the following in the log windows

 [2014-01-29 22:08:39] /dev/cu.usbserial-04VT0EH5 is already in use by another process

or with debug on

[2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:007 (path=(null), vid=0403, pid=6014, manuf=Butterfly Labs, prod=BitFORCE SHA256 SC, serial=FTWWMIYE)

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:006 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:005 (path=(null), vid=0403, pid=6001, manuf=RFXCOM, prod=RFXrec433, serial=04VT0EH5)

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:004 (path=(null), vid=2109, pid=2812, manuf=(null), prod=(null), serial=(null))

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:003 (path=(null), vid=05ac, pid=8242, manuf=(null), prod=(null), serial=(null))

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:002 (path=(null), vid=0424, pid=2513, manuf=(null), prod=(null), serial=(null))

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:253:001 (path=(null), vid=05ac, pid=8006, manuf=(null), prod=(null), serial=(null))

 [2014-01-29 22:13:07] lowlevel_scan: Found usb device at usb:250:005 (path=(null), vid=0403, pid=6001, manuf=FTDI, prod=FT232R USB UART, serial=A900ex4h)

These scans coorespond to my other apps losing connections to their hardware, resetting the interfaces, getting out of sync, etc (some home automation hardware, some weather hardware, some communications stuff…)

FabulousPanda

Oh dear, sounds like a driver conflict! Does the problem occur only when you start mining or also at random times?

FabulousPanda

Oh by the way a possible fix would be to change to 

-S bfl:/dev/cu.usbserial-FTWWMIYE