ulpt —
USB printer support
ulpt* at uhub?
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. |
-
-
- /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.
intro(4),
lpt(4),
uhub(4),
usb(4)
The
ulpt driver appeared in
NetBSD 1.4.
OpenBSD support
was added in
OpenBSD 2.7.
![[OpenBSD]](/openbsd.gif){kind=small}