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Issue 591917 link

Starred by 1 user
Status: Fixed
Owner:
nsanders@chromium.org
Closed: Apr 2016
Cc:
davidri...@chromium.org
█ robotboy@chromium.org
█ wfrichar@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug



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servo_micro and raiden.ko cannot coexist

Project Member Reported by nsanders@chromium.org, Mar 4 2016 
raiden.ko grabs ownership of servo_micro and prevents servod from accessing it. They should be able to coexist. 

Ideally raiden.ko should exclude servo_* and servod should support CCD.

Comment 1 by robotboy@chromium.org, Mar 21 2016 

I believe that servod should be able to just call the equivalent of libusb_detach_kernel_driver from user space to get the kernel USB serial driver to give up the device.  I don't think that raiden.ko needs to change to make that work.

Comment 3 by wfrichar@chromium.org, Apr 14 2016 

libusb has a function to do that automatically: libusb_set_auto_detach_kernel_driver(). Not sure if it's part of the python library

Comment 4 by nsanders@chromium.org, Apr 15 2016 

I don't think python supports it, but it's not hard to check and detatch.
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