mvme337(1M) — ADMINISTRATOR COMMANDS
NAME
mvme337 − create MVME337 character device files
SYNOPSIS
/sbin/auto-device/mvme337 [−v]
DESCRIPTION
The mvme337 command creates character device files in /dev/port for sixty-four asynchronous RS-232 ports for every MVME337 board in the kernel’s Equipped Device Table (EDT). The entries in /dev/port are the controller-specific namings of the aforementioned ports. Their format is /dev/port/m337_cxdy where x is the controller number and y is the port number. Port number is a number from 0 to 63. The actual number of usable ports is determined by the number of MVME741/EVSB boards connected to the MVME337 board. Each MVME741/EVSB board can support up to sixteen ports; each MVME337 can support up to four MVME741s. Board numbers start at 0 and increment by 1.
When mvme337 is invoked, it does the following:
removes any /dev/port and controller-specific device files for boards that no longer exist
makes new /dev/port files for the MVME337 board(s)
if needed makes new /dev/xedt/mvme337_cx files for the MVME337 board(s).
The mvme337 command is automatically invoked upon system installation or when reconfiguration and reboot of the system prompts a new kernel to be created. The −v option sets the output mode to verbose.
Devices in /dev/term are generated by the makedev(1M) program based on the terminal mappings in the file /etc/device-map. The devices are linked to the device nodes in /dev/port.
Any devices, such as printers or modems, that are added to a MVME337 board should link the user names that are to be used for the devices to the corresponding tty device files that were created [see ln(1)]. The ln command should be used only by the super-user.
The following is an example of using ln to create a user device /dev/lp1. A serial printer is added to port 1 of MVME337 board number 0. The corresponding port is /dev/port/m337_c0d1. The super user should use ln to link an appropriate name such as lp1 to the tty device file.
ln /dev/port/m337_c0d1 /dev/lp1
FILES
/dev/port/m337_∗, /dev/term/, /etc/device-map