Greetings, I have been testing a few boards that use the VT8235 and there have been some improvements. An Epox 8K5A board would previously hang the moment data was accessed from a USB 2.0 storage device; since the ehci24-0201 and a VIA IRQ handler update in the more recent 2.4.21-preX-ac releases allowed at least some access on the Epox board before halting.
We've also been testing a VIA EPIA-M board which uses the VT8235 too. The performance of the USB 2.0 on this board is similar to my ASRock K7VT2 board - you can access the USB storage device for a few Mb (I have managed to get over 100Mb on one or two occasions - something the newer patch seems to have introduced), but a transfer over 10Mb will more than likely hang the system. A test on the EPIA with the 2.5 kernel didn't change very much from the Kernel without the recent Machine State Patch. The good thing with 2.5 Kernels is that it will never hang the system - the transfer simply stops until I kill the utility writing to the USB drive. I can even retransfer the file again. The 2.5. storage driver appears to have many advantages over the 2.4. Kernel's storage driver, but 2.5. series kernels are not viable for most solutions at this stage (there are unrelated problems with other modules etc). Are the 2.5 kernels simply too different from 2.4 for a backport to be possible? There must be other issues not related to the EHCI driver, but relating to the VT8235 in general on 2.4. I have an NEC USB 2.0 card which was rock solid on an Abit KT7A board (KT133/686B chipset). On the ASRock K7VT2 (VT8235/KT266A - an unusual combination, but doesn't seem to cause problems elsewhere), the NEC card is much less reliable (in fact, not too far off the VIA - I'll do more tests and disable the onboard via EHCI to make sure that this is the case). ------------------------------------------------------- This SF.NET email is sponsored by: FREE SSL Guide from Thawte are you planning your Web Server Security? Click here to get a FREE Thawte SSL guide and find the answers to all your SSL security issues. http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0026en _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
