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Paul Fertser authored
Print a user-friendly message when libusb_open() fails, e.g. Error: libusb_open() failed with LIBUSB_ERROR_ACCESS when there's a permissions problem. Also output a configure warning if libusb older than 1.0.9 is detected. Change-Id: I800f71f06672fe06c0a98a4e469f853b5021bcfe Signed-off-by: Paul Fertser <fercerpav@gmail.com> Reviewed-on: http://openocd.zylin.com/1430 Tested-by: jenkins Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
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