On Thursday 01 May 2008, Xiaofan Chen wrote: > On Thu, May 1, 2008 at 12:30 AM, Hans Petter Selasky <[EMAIL PROTECTED]> wrote: > > Try and find out. I know that many structures can be optimized for > > minimal memory usage. Currently I reserve space for 128 USB devices and > > 32 endpoints and interfaces. If you reduce those numbers then you will > > save a lot of memory. > > I am a bit confused now. So your USB stack now can be used for > Device side which does not require FreeBSD OS support. Is this > true?
There you got it! My new USB stack is completely symmetric. You use the same callback API in USB Host mode and USB Device mode! > > I thought your device side stack is like Linux Gadget which runs > some kind of Linux and then act as an usb function device (slave) > to a USB host. Nope, it is fully symmetric. > > I am getting two new USB development boards from Microchip, > PIC24 16bit and PIC32 32 bit (MIPS based) USB, both with OTG, both > will not be able to run FreeBSD or Linux or even uClinux due to memory > constraint. I have the Olimex LPC-P2148 (ARM7 based) as well which > could not run FreeBSD/Linux either. > > Do you think any of them can run your stack's device side? With a little work it will not be a problem. You need to support mutexes and a few other things that are specific to USB. > > What is your test platform for your stack's device side? Does > it run FreeBSD? Yep. AT91RM9200 (KB9202B from Kwikbyte) --HPS _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "[EMAIL PROTECTED]"
