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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 pro‐
     tocol.

     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

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