Kernel driver auto attach/detach

[Robby McKilliam <robby.mckilliam@xxxxxxxxxxx>]

I've used libusb's libusb_set_auto_detach_kernel_driver  

http://libusb.sourceforge.net/api-1.0/group__dev.html#ga1656d6b7272d4c82f842b20a834b1467

to automatically detach and attach the kernel driver. 

Patch here 

https://github.com/robbymckilliam/libftdi/commit/75a9219b7e3160bca863911d2790f646bc8243ee

This should leave the driver unattached (same behaviour as before) in the case that the host does not support auto attaching/detaching.

Tested on linux (Ubuntu 16.04 and Raspbian Stretch) with an FT230X. On OSX it still appears to be necessary to unload the kernels FTDI drivers as described here

https://github.com/libusb/libusb/wiki/FAQ#How_can_I_run_libusb_applications_under_Mac_OS_X_if_there_is_already_a_kernel_extension_installed_for_the_device

Cheers,

Robby

Dr Robby McKilliam
Senior Communications Engineer

Myriota Pty Ltd 
25 Chesser St 
Adelaide, SA, 5000 
robby.mckilliam@xxxxxxxxxxx 

myriota.com

         

   

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