On Sat, 18 May 2002, Hactar wrote:
| I think that when I load usbcore.o and usb-uhci.o, /proc/bus/usb should
| appear. Is this correct?
Yes.
Something has to mount it, like a script:
mount -t usbdevfs usbdevfs /proc/bus/usb
Try this command from the command prompt after usbcore
and the usb host-controller driver are loaded.
Does that work?
| 1000/0 [EMAIL PROTECTED]:~ > /sbin/lsmod | grep usb
| usb-uhci 21508 0 (unused)
| usbcore 33184 0 [usb-uhci]
| 1001/0 [EMAIL PROTECTED]:~ > ls /proc/bus/
| total 0
| 0 pci/
|
| USB support and "Legacy USB Support" (I didn't think USB was old enough to
| have any legacy devices) are enabled in the BIOS, but I didn't think Linux
| used the BIOS.
"Legacy USB support" in a BIOS means that the BIOS handles
USB keyboard and mouse but emulates PS/2 keyboard and mouse
to the OS & apps.
Linux doesn't need it. and right, Linux doesn't use BIOS
(except for APM).
| USB support is modularized in the kernel (2.4.18). I can see a full
| description of the PDA in /var/log/messages when I turn it on in the
| cradle, or insert it when powered up.
|
| It gets an interrupt:
|
| 1002/0 [EMAIL PROTECTED]:~ > grep usb /proc/interrupts
| 9: 11 XT-PIC usb-uhci, usb-uhci, usb-uhci
|
| And some addresses:
|
| 1000/0 [EMAIL PROTECTED]:~ > grep usb /proc/ioports
| a400-a41f : usb-uhci
| a800-a81f : usb-uhci
| b000-b01f : usb-uhci
|
| The appropriate alias is default:
|
| 1002/0 [EMAIL PROTECTED]:~ > /sbin/modprobe -c | grep '^alias usb-controller'
| alias usb-controller usb-uhci
|
| /etc/rc.d/rc.sysinit seems to assume that all you have to do is insert the
| modules, then you can mount the filesystem:
um, I don't see why this doesn't work, sorry.
Maybe a timing problem?
| 1006/0 [EMAIL PROTECTED]:~ > sed -n '160,172p' /etc/rc.d/rc.sysinit
| # Initialize USB controller and HID devices
| usb=0
| if ! grep -iq "nousb" /proc/cmdline 2>/dev/null && ! grep -q "usb" /proc/devices
|2>/dev/null ; then
| aliases=`/sbin/modprobe -c | awk '/^alias usb-controller/ { print $3 }'`
| if [ -n "$aliases" -a "$aliases" != "off" ] ; then
| modprobe usbcore
| action $"Mounting USB filesystem: " mount -t usbdevfs usbdevfs /proc/bus/usb
| for alias in $aliases ; do
| [ "$alias" != "off" ] && action $"Initializing USB controller ($alias): "
|modprobe $alias
| done
| [ $? -eq 0 -a -n "$aliases" ] && usb=1
| fi
| fi
|
| Is my motherboard (an Asus A7V266) special? Or am I doing something
| blatantly wrong? Thanks.
nope, don't think so.
--
~Randy
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