Re: [libusb] Open device on Android

[Xiaofan C. <xia...@gm...>]

On Tue, Mar 15, 2016 at 12:39 AM, Antão Almada <ant...@gm...> wrote:
> Hi all,
>
> I've been researching for a while but I'm misssing some essential parts.
>
> I already know that I need to request the user permission to access the
> device and then pass the respective file descriptor to libusb.
>
> I successfuly built the latest libusb source but then how do I pass in the
> file descriptor?

Take note the latest libusb source has not integrated any of
the patches for Android with regard to file descriptor enhancement.

   https://github.com/libusb/libusb/tree/master/android

> I also tried to use some of the many forks that add an fd parameter to
> libusb_open() but then what do I pass in for the first parameter? Do I have
> to get it from libusb_get_device_list()? If so, how do I map the Android
> UsbDevice or UsbAccessory to a libusb_device?
>

I do not know about the answer. But anyway, personally I think without the
official integration, libusb under Android is basically a no-go for most users
since it requires root.

-- 
Xiaofan