netbsd man page for ulpt

ULPT(4) 						   BSD Kernel Interfaces Manual 						   ULPT(4)

NAME
     ulpt -- USB printer support

SYNOPSIS
     ulpt*   at uhub?

DESCRIPTION
     The ulpt driver provides support for Universal Serial Bus (USB) printers that follow either the USB printer uni-directional or bi-directional
     protocol.

     Additional bits OR-ed in the minor device number with the unit number select various features of the driver:

	   Minor Bit	Function
	   0x40 	Do not initialize (reset) the device on the port.

     Some printers cannot handle the reset on open; in case of problems try the ulpn device.

FILES
     /dev/ulpt?  USB printer with reset on open

     /dev/ulpn?  USB printer without reset on open

SEE ALSO
     lpt(4), usb(4)

     USB Device Class Definition for Printing Devices, USB Implementors Forum, http://www.usb.org/developers/devclass_docs/usbprint11.pdf, January
     2000.

HISTORY
     The ulpt driver appeared in NetBSD 1.4.

BSD
								   May 16, 2009 							       BSD