Question on USB module

satimis · 09-12-2005, 07:54 AM

Hi folks,

BLFS 6.1

On running following commands;
bash-3.00$ su -
Password:
root@localhost:~# modprobe usb

Code:

FATAL: Module usb not found.

bash-3.00$ cat /etc/sysconfig/modules

Code:

########################################################################
# Begin /etc/sysconfig/modules
#
# Description : Module auto-loading configuration
#
# Authors     :
#
# Version     : 00.00
#
# Notes       : The syntax of this file is as follows:
#               <module> [<arg1> <arg2> ...]
#
# Each module should be on it's own line, and any options that you want
# passed to the module should follow it.  The line deliminator is either
# a space or a tab.
########################################################################

# End /etc/sysconfig/modules

"usbcore" module is not listed.

bash-3.00$ cat /etc/fstab

Code:

 
# Begin /etc/fstab

# file system  mount-point    type   options              dump  fsck
#                                                             order

/dev/hda6      /              ext3   defaults                1  1
/dev/hda3      swap           swap   pri=1                   0  0
proc           /proc          proc   defaults                0  0
sysfs          /sys           sysfs  defaults                0  0
devpts         /dev/pts       devpts gid=4,mode=620          0  0
shm            /dev/shm       tmpfs  defaults                0  0
/dev/fd0       /mnt/floppy    auto   noauto,owner,kudzu      0  0
usbfs          /proc/bus/usb  usbfs  devgid=14,devmode=0660  0  0
# End /etc/fstab

The line "usbfs /proc/bus/usb usbfs devgid=14,devmode=0660 0 0" is there.

Is there other command to check whether USB device filesystem has been compiled on the kernel?

Whether I need to recompile the kernel? TIA

BR
satimis

kjordan · 09-12-2005, 12:40 PM

1) Well, there is no module named "usb" AFAIK.
2) usbcore wouldn't be there unless you explicitly put it there.
3) "dmesg | grep usb" would let you know if it did anything related to usb.

Do you remember if you made these modules or built them in? You can go into the kernel menuconfig again and check and see, and if they're not there just enable them, otherwise just quit and don't save changes.

satimis · 09-12-2005, 06:09 PM

Hi kjordan,

Quote:

2) usbcore wouldn't be there unless you explicitly put it there.

Where does usbcore reside?

Quote:

3) "dmesg | grep usb" would let you know if it did anything related to usb.

# dmesg | grep usb

Code:

usbcore: registered new driver usbfs
usbcore: registered new driver hub
usb 1-1: new low speed USB device using uhci_hcd and address 2
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
usbcore: registered new driver usb-storage
input: USB HID v1.00 Mouse [Cypress Sem PS2/USB Browser Combo Mouse] on usb-0000:00:11.2-1
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver

Quote:

Do you remember if you made these modules or built them in

Yes. From the Notes taken down during recompiling the kernel to make ADSL to work;

@localhost.localdomain : /root@localhost:/usr/src/linux-2.6.11.12# make modules_install

Code:

INSTALL drivers/acpi/ibm_acpi.ko

"make modules_install" has been run.

Others noted with thanks

BR
satimis

satimis · 09-12-2005, 06:41 PM

Hi kjordan,

Further to my last posting, I just read /usr/src/linux-2.6.11.12/.config

Code:

# USB devices
#

# Open Sound System
# CONFIG_SOUND_PRIME is not set

# USB support
# 
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set

CONFIG_USB_DEVICEFS=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y

# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_UHCI_HCD=y

# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH_TTY is not set
# CONFIG_USB_MIDI is not set
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=y

CONFIG_USB_STORAGE=y

CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y

CONFIG_USB_EGALAX=m

CONFIG_USB_CYTHERM=m
# CONFIG_USB_PHIDGETKIT is not set
CONFIG_USB_PHIDGETSERVO=m

satimis

kjordan · 09-12-2005, 07:29 PM

Quote:

Where does usbcore reside?

Well, the actual module is in /lib/modules/2.6.1x.y somewhere. But that config file just specifies modules you want loaded at boot time.

Looks like you have USB support built-in (not as modules) so no extra work required.