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Old 03-31-2004, 11:40 PM   #1
jwjensen
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Registered: Jan 2004
Posts: 12

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Kernel 2.6.x usb scanner support


I notice that with kernel 2.6, "usb scanner support" is identified as obsolete. The option appears in .config through kernel 2.6.2, but beginning with kernel 2.6.3 this .config option is dropped.

I have an hp5470 scanner for which there is a non-libusb sane backend available. I have no idea how to convert/rewrite this backend to use libusb. So, to continue having support for my scanner, I've devised a way to bring usb scanner support forward into kernel 2.6.3 and kernel 2.6.4. Here is the procedure:

1) copy scanner.o and scanner.h from /usr/src/linux-2.6.2/drivers/usb/image/ to the corresponding place in the linux-2.6.3 build tree.

2) copy the text from the section defining "config USB_SCANNER" from /usr/src/linux-2.6.2/drivers/usb/image/Kconfig into an appropriate place in /usr/src/linux-2.6.3/drivers/usb/image/Kconfig.

3) in the file /usr/src/linux-2.6.3/drivers/usb/Makefile, add the line obj-$(CONFIG_USB_SCANNER) += image/

4) in the file /usr/src/linux-2.6.3/drivers/usb/image/Makefile, add the line obj-$(CONFIG_USB_SCANNER) += scanner.o

5) add the line CONFIG_USB_SCANNER=m to the .config file.

From here on, one can run "make xconfig" and be presented with the option to set CONFIG_USB_SCANNER. When set, the following "make", "make modules_install", and "make install" will create a viable scanner.ko in /lib/modules/2.6.3/kernel/drivers/usb/image.

I'm aware that the kernel folks will probably take a dim view of the above. I do wish however that support for my (fairly common, I think) scanner hadn't been summarily dropped in kernel 2.6.3. I hope nothing changes in future kernel build trees anytime soon that makes my carrying forward CONFIG_USB_SCANNER impossible.
 
Old 04-01-2004, 06:34 AM   #2
natalinasmpf
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Registered: Dec 2003
Distribution: Slackware 9.1
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I don't even know how to get my scanner working with usbscanner, mknod and modprobe and all. What is the replacement anyway?

And devfs for lilo? The successor isn't mentioned in the config either, save for the name, and I can't compile its successor because there's no option for it, and now, lilo gets all confused...
 
Old 04-01-2004, 10:42 AM   #3
jwjensen
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Registered: Jan 2004
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Greetings! I forgot to mention that I'm running RH9 with updates and KDE-3.2.1. Not sure what scanner you're using. Sounds like you may be having several issues. If you'd care to email me at jimwjensen@centurytel.net I'll do my best to help out. Mind you, I'm no expert--never used Slackware although I'd enjoy experimenting with it. --Jim
 
  


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