Stefan Reinauer wrote: > * Peter Stuge <[EMAIL PROTECTED]> [060707 19:52]: > >> This is a nice idea. >> >> On Fri, Jul 07, 2006 at 04:18:25PM +0200, Stefan Reinauer wrote: >> >>>> what you need is a debug device, which mostly looks like a usb >>>> style null modem cable. No idea where to get this hardware >>>> though. >>>> >>> D'uh - it reads any usb 2 to usb 2 data link cable can be used for >>> this purpose. Such cables are available for ~ 10$ >>> >> Where did you read this? >> >> I doubt they will work, unless the manufacturers were exceedingly >> clever and actually implemented the DEBUG_MODE feature in the >> device.. >> > > You are right. The cable would need to implement the DEBUG_MODE feature. > > I read over page 5 of > http://www.intel.com/technology/magazine/computing/it09021.pdf > and it actually says so. > > The question is now: what devices/cables can be used for this purpose. > Or is it maybe trivial to build such a device yourself in a low > quantity? > > >> I'm not sure if this requirement is compatible with the CDC spec that >> USB-serial adapters implement, but it would indeed be very handy if >> minicom+the kernel USB-serial driver could be used with the host end >> of the debug device. >> > > That would indeed be great! > > >> It's quite possible that the device requires a special application, >> but in any case such an application would be trivial to hack up. >> > > Or just a small dummy serial driver so minicom or whatever could be > used. > > >> I think the hard part is to find or make the hardware. Or maybe not >> so hard if you have a proven USB2 HS platform and are comfortable >> with tweaking USB descriptors. All I have handy is USB2 FS. :( >> > > The idea is probably to get a cost effective solution, otherwise a lot > of volunteers might get locked out of joining the project. > > Stefan > Let me know what it actually needs (if it needs to be custom) and I'll see about manufacturing them in low volumes (100's, k's) for cheap.
-Bari -- linuxbios mailing list [email protected] http://www.openbios.org/mailman/listinfo/linuxbios
