On Tue, May 18, 2010 at 10:08 PM, Uwe Bonnes
<bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Xiaofan> As mentioned before, libftdi-1.0 should not return error if the
> Xiaofan> detach_errorno is LIBUSB_NOT_FOUND (Linux, kernel driver
> Xiaofan> already detached) or LIBUSB_NOT_SUPPORTED (Windows and Mac OS
> Xiaofan> X/Darwin).
>
>
> Argh, I mistook the return value form libusb and errno.
>
> What about the patch below?
>
> Only if the errno from the libusb_detach_kernel_driver() call is EPERM, the
> code path is changed.
>
Looks about right. However, I am not so sure if EPERM is now a valid
return error number in libusb-1.0.
http://libusb.sourceforge.net/api-1.0/group__dev.html#ga0bc7a17090debf6d2b2711c505ad9725
--
Xiaofan http://mcuee.blogspot.com
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