On Sat, Sep 7, 2013 at 11:36 PM, Alan Stern <st...@rowland.harvard.edu> wrote: > Slightly off the original topic but perhaps still relevant... > > There are several Linux programs using libusb-0.1 that don't work with > libusb-compat. The reason is that they perform some or all of their > I/O using the usbfs API directly, relying on libusb merely for listing > devices and opening the device files. In particular, they get the > device's open file descriptor by abusing the interface and reading the > value directly out of the private libusb usb_dev_handle structure.
Just wondering if there are any important programs here. If there are not many, why not suggest them to move to libusbx API. Just wondering how easy for these program to migrate to mixed libusbx API and directly usbfs API. Or is it faster for them to use libusbx API and get rid of the usbfs API? I know one of them which is libftdi-0.x async I/O which use usbfs directly for Linux. Later libftdi1 migrates to libusb-1.0 API and the problem no longer exists. > If libusb-compat were changed so that the initial parts of the > usb_dev_handle structure were the same as in libusb-0.1 -- including > the underlying file descriptor -- these programs might suddenly start > working. (Note that doing this would require adding a function to the > libusb-1.0 API for retrieving the low-level file descriptor.) > > Anybody feel like implementing this? How feasible is this? I am not so sure if any one wants to further develop libusb-compat-0.1 other than bug fixes. Travis has done some work on integrating libusb-win32 async APIs into libusb-compat-0.1 but the work is not published. -- Xiaofan ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391&iu=/4140/ostg.clktrk _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
