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, January 2000, http://www.usb.org/developers/devclass_docs/usbprint11.pdf.

HISTORY

The ulpt driver appeared in NetBSD 1.4.