autopush Command

Purpose

Configures lists of automatically pushed STREAMS modules.

Syntax

autopush -f File

autopush -r -M Major -m Minor

autopush -g -M Major -m Minor

Description

The autopush command configures the list of modules to be automatically pushed onto the stream when a device is opened. It can also remove a previous setting or obtain information on a setting.

Flags

Table 1. Flags
Item	Description
-f `File`	Sets up the autopush configuration for each driver according to the information stored in the specified file. The file that is specified by the `File` parameter consists of lines consists of at least four fields per line. Each field is separated by a character space as shown in the following example: `maj_ min_ last_min_ mod1 mod2 . . . modn` The first three fields are integers that specify the major device number, minor device number, and last minor device number. The subsequent fields represent the names of modules. If the value of the `min_` field is -1, then all minor devices of a major driver that is specified by the `maj_` field are configured and the value of the `last_min_` field is ignored. If the value of the `last_min_` field is 0, then only a single minor device is configured. To configure a range of minor devices for a particular major, the value of the `min_` field must be less than the value of the `last_min_` field. The last fields of a line in the autopush file represent the list of module names. Each module name is separated by a character space. The maximum number of modules that can be automatically pushed on a stream is eight, and they are pushed onto the stream in the order they are listed. Comment lines start with a # (hash sign).
-r	Removes the previous configuration setting of a particular major and minor device number.
-g	Obtains the current configuration setting of a particular major and minor device number. It also returns the starting minor device number if the request corresponds to a setting of a range.
-M `Major`	Specifies a major device number.
-m `Minor`	Specifies a minor device number.

This operating system provides an enhancement to the autopush command that makes it easier to specify major numbers. The name of a driver can be specified instead of its major number anywhere the major number is normally used.

Parameters

Table 2. Parameters
Item	Description
`File`	Contains at least the major device number, minor device number, last minor device number and modules.
`Major`	Specifies a major device number.
`Minor`	Specifies a minor device number.

Examples

To configure a list of automatically pushed Streams modules, type:
```
autopush -f File
```
To remove the previous configuration, type:
```
autopush -r -M Major -m Minor
```
To show the current configuration, type:
```
autopush -g -M Major -m Minor
```