I'm seeing a linking issue when I compile USB HID support directly 
into the kernel.  Looking at my kernel config it looks like it might 
have something to do with the fact that I'm compiling CONFIG_INPUT, 
CONFIG_INPUT_KEYBDEV, and CONFIG_INPUT_MOUSEDEV as modules.  Should 
CONFIG_USB_HID depend on one, or all of the above.



ld -m elf_i386 -T /stuff/src/linux-2.4.22-pre10/arch/i386/vmlinux.lds -e 
stext arch/i386/kernel/head.o arch/i386/kernel/init_task.o init/main.o 
init/version.o init/do_mounts.o \
        --start-group \
        arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o 
mm/mm.o fs/fs.o ipc/ipc.o \
         drivers/acpi/acpi.o drivers/char/char.o drivers/block/block.o 
drivers/misc/misc.o drivers/net/net.o drivers/net/fc/fc.o 
drivers/net/appletalk/appletalk.o drivers/atm/atm.o 
drivers/ide/idedriver.o drivers/scsi/scsidrv.o 
drivers/message/fusion/fusion.o drivers/cdrom/driver.o 
drivers/pci/driver.o drivers/net/pcmcia/pcmcia_net.o 
drivers/video/video.o drivers/usb/usbdrv.o drivers/media/media.o 
drivers/md/mddev.o \
        net/network.o \
        /stuff/src/linux-2.4.22-pre10/arch/i386/lib/lib.a 
/stuff/src/linux-2.4.22-pre10/lib/lib.a 
/stuff/src/linux-2.4.22-pre10/arch/i386/lib/lib.a \
        --end-group \
        -o vmlinux
drivers/usb/usbdrv.o(.text+0x1dd9b): In function `hidinput_hid_event':
: undefined reference to `input_event'
drivers/usb/usbdrv.o(.text+0x1de1d): In function `hidinput_hid_event':
: undefined reference to `input_event'
drivers/usb/usbdrv.o(.text+0x1de7c): In function `hidinput_hid_event':
: undefined reference to `input_event'
drivers/usb/usbdrv.o(.text+0x1defc): In function `hidinput_hid_event':
: undefined reference to `input_event'
drivers/usb/usbdrv.o(.text+0x1e0c8): In function `hidinput_connect':
: undefined reference to `input_register_device'
drivers/usb/usbdrv.o(.text+0x1e0e2): In function `hidinput_connect':
: undefined reference to `input_register_device'
drivers/usb/usbdrv.o(.text+0x1e247): In function `hidinput_disconnect':
: undefined reference to `input_unregister_device'
drivers/usb/usbdrv.o(.text+0x1dde0): In function `hidinput_hid_event':
: undefined reference to `input_event'
make: *** [vmlinux] Error 1

-- 
Once you have their hardware. Never give it back.
(The First Rule of Hardware Acquisition)
Sam Flory  <sflory@rackable.com>