I am trying to make a script (on linux) that can turn a light in my mouse on or off.
This is the code I have so far:
import usb.core
import usb.util
import sys
interface = 0
dev = usb.core.find(idVendor=0x1532, idProduct=0x0017)
def main():
if dev is None:
print "device not found"
else:
print "device found"
if dev.is_kernel_driver_active(interface) is True:
print "but we need to detach kernel driver"
dev.detach_kernel_driver(interface)
print "claiming device"
usb.util.claim_interface(dev, interface)
print "release claimed interface"
usb.util.release_interface(dev, interface)
print "now attaching the kernel driver again"
dev.attach_kernel_driver(interface)
print "all done"
return 0
if __name__ == '__main__':
main()
This works fine but if I try to do a: dev.set_configuration()
after the claim_interface(dev, interface)
the script returns the error: usb.core.USBError: Resource busy
Why is it still busy after I have detached its kernel driver?
Not sure if this will solve, but are the udev rules for your mouse being set up correctly? I had a similar problem with a custom device a friend did for me and I solved by adding a rule like:
SUBSYSTEM !="usb_device", ACTION !="add", GOTO="device_rules_end"
SYSFS{idVendor} =="1532", SYSFS{idProduct} =="0017", SYMLINK+="mydevice"
MODE="0666", OWNER="<your-username-here>", GROUP="root"
LABEL="device_rules_end"
in my /etc/udev/rules.d
folder.
HTH!
EDIT: Before adding the rule, try running your script with sudo
. If it will work that way it's almost certainly a permission setting that will be fixed by the above rule.
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