On Thursday 29 January 2004 19:01, Greg KH wrote:
On Thu, Jan 29, 2004 at 06:51:34PM -0500, Gene Heskett wrote:
It just seems that the pl2303's seriel side/end should respond to a cts drop right at the end of the currently being sent char, instead of blindly sending the next x bytes into an overrun flag on the other end. Does that hardware not have any buffering at all? Or do we have a real bug in the pl-2303 code? Not having any data on the chipset in the thing, I've not bothered to walk thru the code.
No one has any data on the chipset. That's the biggest problem with that driver.
Mmmph... I was afraid of that. Has anyone carved it open to see whats in it? Mine came from Radio SHack, has only the "USB-Serial
It has a PL2303 chip in it and probably some max232 compatible chip to do the RS232 levels. (and probably a small E2PROM to keep VID/PID, etc.)
Cable" molded in on the molding, and has Radio Shack logo's on the coinnector moldings. I get the impression its actually a solid casting and one would have to grind the plastic away to access whats in it. If thats the case, it might as well be truely a black (its RS Grey) box.
Is there anybody at Prolific that speaks english?
If you go to tech.prolific.com.tw after following some links you can get the file "ds_pl2303_v14.pdf" that as some information on the chip, although it is not much information, I'm afraid. (I have just downloaded it, so I'm sure the server is working)
It also as a "Linux driver" on the download page, that is a driver written a million years ago by prolific. I think (although I'm not sure) that the original drivers for Linux were written based on the one from prolific, but Greg can tell you for sure.
-- Paulo Marques Software Development Department - Restinfor, Lda. Phone: +351 252 290600, Fax: +351 252 290601 Web: www.grupopie.com
"In a world without walls and fences who needs windows and gates?"
------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
