Re: USB printer port (HP PSC 750)

[Michael Heldebrant <hmike@portalofevil.com>]

On Sat, 2001-12-08 at 15:33, Pedro Quaresma de Almeida wrote:
> Hi
> 
> I am trying to use my HP PSC 750 connected via USB.
> 
> My kernel is "Linux Fenix 2.2.18pre21"
> 
> The dmesg command gives
> 
> ...
> usb.c: registered new driver usblp
> usb.c: registered new driver usbscanner
> scanner.c: USB Scanner support registered.
> usbserial.c: USB Serial support registered for Generic
> usb.c: registered new driver serial
> uhci.c: USB UHCI at I/O 0xe000, IRQ 10
> uhci.c: detected 2 ports
> usb.c: new USB bus registered, assigned bus number 1
> usb.c: USB new device connect, assigned device number 1
> usb.c: USB device 1 (prod/vend 0x0/0x0) is not claimed by any active
> driver.
> usb.c: registered new driver usbdevfs
> usb.c: registered new driver hub
> hub.c: USB hub found
> hub.c: 2 ports detected
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 48k freed
> usb.c: USB new device connect, assigned device number 2
> usb.c: USB device 2 (prod/vend 0x45e/0x1b) is not claimed by any
> active driver.
> Swap area shorter than signature indicates
> Swap area shorter than signature indicates
> usb.c: USB new device connect, assigned device number 3
> printer.c: usblp0: USB Bidirectional printer dev 3 if 0 alt 0
> registered device ppp0
> 
> I already tried to do (as said in
> http://www.linux-usb.org/USB-guide/x342.html)
> 
> mknod /dev/usb/lp0 c 180 0

Well I'm no usb expert but how exactly are you communicating with the
printer?  Catting files into /dev/lp0 or /dev/usb/lp0?  Is the usb
printer module loaded or compiled into the kernel?  Are you using lpd,
CUPS, etc?

--mike