Am 27. August 2005, 11:04 Uhr (-0700) schrieb Stephen J. Gowdy:
> uhci can only do USB 1 speeds. I don't understand the config problem,
> sorry.

the usb configuration menu of make menuconfig in the
/usr/src/linux-2.4.31 shows:

--- USB Host Controller Drivers                                      x x  
<M>   UHCI (Intel PIIX4, VIA, ...) support                           x x  
<M>   UHCI Alternate Driver (JE) support                             x x  
< >   OHCI (Compaq, iMacs, OPTi, SiS, ALi, ...) support              x x  

...

It used to show an additional line for EHCI (e.g. in my older 2.4.26
kernel config):

--- USB Host Controller Drivers                                      x x  
<M>   EHCI HCD (USB 2.0) support (EXPERIMENTAL)                      x x  
<M>   UHCI (Intel PIIX4, VIA, ...) support                           x x  
<M>   UHCI Alternate Driver (JE) support                             x x  

make xconfig shows the EHCI Option, but the line is grey so nothing
can get selected.

I just wondered if that is done on purpose with this kernel.

I manually edited the .config file and enabled the EHCI option,
compiled the module and installed it. Doing "modprobe ehci-hcd" gives
this in the kernel log:


Aug 27 21:28:40 grisey kernel: ehci_hcd 00:1d.7: USB 2.0 enabled, EHCI 1.00, 
driver 2003-Dec-29/2.4
Aug 27 21:28:40 grisey kernel: hub.c: USB hub found
Aug 27 21:28:40 grisey kernel: hub.c: 6 ports detected

This seems to look good. I wonder what it does when it comes to using
an USB 2.0 device.

--
Orm


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