On Wed, Jun 24, 2009 at 12:19 PM, Orin Eman<orin.e...@gmail.com> wrote: > On Mon, Jun 22, 2009 at 7:02 PM, Xiaofan Chen <xiaof...@gmail.com> wrote: >> >> On Tue, Jun 23, 2009 at 3:30 AM, Duane Ellis<open...@duaneellis.com> >> wrote: >> >> > All is not rosy and perfect, "WinUSB" would require an INF file that >> > *points* to the driver - much like the work that Freddy is working >> > towards with a universal libusb inf file >> >> Stephan Meyer (libusb-win32) user see WinUSB as the possible solution >> for 64bit Windows as well. That is why he added the WinUSB backend >> to libusb-win32 1.0 development branch. Unfortunately it is not working >> yet. >> The libusb-win32 WinUSB backend simplifies the use of WinUSB. > > I wouldn't agree with that. In terms of ease of use, libusb and WinUSB are > about the same. I've just ported some code (which originally used > propriatary drivers, then was ported to WinUSB) to libusb on linux and MAC. > I didn't find libusb easier than WinUSB. Then libusb on linux has the > problem with short packets on bulk reads which WinUSB doesn't have. > > Now if libusb provided device arrival/removal notifications for all OSs, > that would make it easier on all three systems. >
I see. Since I only barely know C and got headache looking at the long API names of Windows API calls (including WinUSB), I feel libusb is easier. ;-) But I agree that WinUSB should not be too difficult for Windows programmers. I've seen quite some examples to know that. A WinUSB backend without libusb is also possible for OpenOCD. It is a very good alternative for XP/vista/Windows 7 32bit and 64bit. libusb-win32 can still be a viable alternative for Windows 2k/XP. Who are still using 98SE or even Windows ME? ;-) Last time we compared generic drivers like WinUSB and libusb-win32, both have its advantages. For example, WinUSB does not support isochronous transfer and does not support Windows 2k and lower. libusb-win32 does not support Vista 64. -- Xiaofan http://mcuee.blogspot.com _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
