On Thu, 14 Feb 2002, Georg Acher wrote: > On Wed, Feb 13, 2002 at 05:33:13PM -0600, Matthew Fredrickson wrote: > > > More data: IIRC, on the vanilla uhci.c driver, ISOC sucks. Sucks really > > badly. Kind of funny though, 'cause I was helping somebody with writing a > > driver for something that used BULK transfers, and the usb-uhci driver > > kept on Oops!'ing his system (dereferencing a NULL pointer in the host > > controller code) whenever he tried to initiate his transfer. Switching to > > Were there bug reports for this? Does it still happen? > > > the uhci.c driver corrected this. Go Figure. So both drivers are > > good/bad at different things, though the usb-uhci driver seems to > > perform/behave better for most cases I've seen. > > Just as a side note: We use ISO streaming for our DABUSB-device, which needs > about 384KB/s. It works reliably for _months_, but only with Intel chipsets. > VIA chipsets produce errors (corrupted packets) every few hours. >
Oh, this could be the problems that I've seen. I've only had access to VIA based UHCI controllers. Maybe I'll see if I can go hunt up some other UHCI controllers and see what happens... Matthew Fredrickson _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
