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Command: ulpt | Section: 4 | Source: OpenBSD | File: ulpt.4
ULPT(4) FreeBSD Kernel Interfaces Manual ULPT(4)
NAME
ulpt - USB printer support
SYNOPSIS
ulpt* at uhub?
DESCRIPTION
The ulpt driver provides support for USB printers that follow the printer
bi- or uni-directional protocol. The bits in the minor number select
various features of the driver.
Minor Bit Function
64 Do not initialize the device on the port.
FILES
/dev/ulpt?
For some HP LaserJet printer models (1000, 1005, 1018, 1020), the driver
needs at least version 1.0 of the following firmware files, which are
loaded when a printer is attached:
/etc/firmware/ulpt-hp1000
/etc/firmware/ulpt-hp1005
/etc/firmware/ulpt-hp1018
/etc/firmware/ulpt-hp1020
These firmware files are not free because HP refuses to grant
distribution rights. As a result, even though OpenBSD includes the
driver, the firmware files cannot be included and users have to download
these files on their own. A port which can download and install the
firmware can be found in /usr/ports/sysutils/firmware/ulpt.
SEE ALSO
intro(4), lpt(4), uhub(4), usb(4)
HISTORY
The ulpt driver appeared in NetBSD 1.4. OpenBSD support was added in
OpenBSD 2.7.
FreeBSD 14.1-RELEASE-p8 February 4, 2013 FreeBSD 14.1-RELEASE-p8