On Sat, Jun 27, 2009 at 11:24 AM, David Brownell<davi...@pacbell.net> wrote: > On Friday 26 June 2009, Xiaofan Chen wrote: >> On the other hand, it may be easier to create a WinUSB backend for >> OpenOCD which covers the needs for OpenOCD (or libftdi) and >> OpenOCD (or libftdi) only. You may not need to be a Windows driver >> developer to do this. > > Correct me if I'm wrong here: currently, the *ENTIRE* reason > to care about the D2XX library is to get simpler Windows support.
Not so sure about the word "ENTIRE". I think it certainly is the main reason. There may be people who run Linux and Mac OS X and want to use the FTDI D2XX library due to the perceived performance reasons. > If that's so ... wouldn't it make the most sense just to rip out > all the D2XX code, and replace it with WinUSB calls? Yes this is the way to go. I think it is better to have both possibility. > > On the plus side: no GPL worries, and simpler stories for > distributors and end users. No waiting for "someone" to > fix the holes in libusb on MS-Windows, which have already > been languishing for two years. > > On the minus side: lose support for now-obsolete MS-Windows > versions (but why care about older-than-XP?); forgoes the > notion of a 100% identical programming interface (in just > one file, go cry me a river); and some "remove old driver" > stuff may need to be done. There are people who are still using Windows 2000, and even 98SE. As for Windows ME which even Microsoft wanted to forget, I do not know. ;-) All in all, IMHO libusb-win32+libftdi should still be a possibility for Windows users (except 64bit). And the build option of D2XX should still be kept for Windows and other users who want to build their own binary. > Mmm? > > - Dave > > p.s. Another "plus". This is probably very doable by one > person, the classic "man on a mission". I've seen > harder things done in less than two weeks, even with > MS-Windows obstacles in the way. > I tend to agree with this. WinUSB API is relatively "simple" and "clean" from what I see. -- Xiaofan http://mcuee.blogspot.com _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
