On Fri, Jan 11, 2002, Bill Arlofski <[EMAIL PROTECTED]> wrote: > I just purchased an Iomega external USB 2.0 CDRW drive which is supposed > to be able to write/rewrite/read/RIP(dae) at 16x/10x/40x/32x with a USB > 2.0 connection. But even with my handy-dandy new IOGEAR 5 port USB 2.0 > PCI card, I am only seeing 4x (USB 1.1) speeds. > > I purchased both the IOGEAR PCI card (model GIC250U), and the Iomega USB > CDRW (model CDRW6402EXT) because I have been reading that both Iomega > and IOGEAR were supporting the Linux-USB projects. > > I have not been able to find much info regarding Linux and USB 2.0 > support. Can anyone point me in the direction I need to go to determine > if there is support for this particular setup, or (more generically) a > URL that describes the current status of USB 2.0 support for Linux?
The way USB 2.0 controllers work is they have a USB 2.0 controller (EHCI) and a USB 1.1 controller (OHCI or UHCI). If you don't have an EHCI driver, it will only use the USB 1.1 controller and you'll be limited to USB 1.1 speeds. To get USB 2.0 speeds, you need to use the EHCI driver. It's available as a patch for 2.4 kernels (check www.linux-usb.org for more info) or you can try 2.5 kernels which have it built in (not recommended since it's not stable). JE _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
