Hi, Henning. I recently discovered that the Linux kernel USB scanner
driver (in 2.4.22 and 2.6.0-test at least) binds to a few HP multi-function
peripherals:
{ USB_DEVICE(0x03f0, 0x1411) }, /* PSC 750 */
{ USB_DEVICE(0x03f0, 0x2f11) }, /* PSC 1210 */
This serves no useful purpose for the PSC 750, which only has a printer-
class interface, and it actually causes problems on the PSC 1210, because
it binds to the vendor-specific interfaces on that model and prevents the
user-mode HP OfficeJet Linux driver (http://hpoj.sf.net) from accessing
them (via libusb). As a result, I had to include a workaround in the hpoj
code, where it checks for this condition in /proc/bus/usb/devices and
blacklists+unloads scanner.o if necessary.
Please remove the above two lines from scanner.h in the various kernel
trees, and please make a note for now to not add any more HP multi-function
peripherals (OfficeJet, Printer/Scanner/Copier (PSC), LaserJet, or
PhotoSmart printer) to this table.
(Please "reply to all", since I'm no longer subscribed to linux-usb-devel.)
Thanks,
David
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