NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | EXIT STATUS | ATTRIBUTES | SEE ALSO | NOTES
The update_drv command informs the system about attribute changes to an installed device driver. It can be used to re-read the driver.conf(4) file, or to add, modify, or delete a driver's minor node permissions or aliases.
Without options, update_drv reloads the driver.conf file.
Upon successfully updating the aliases, the driver binding takes effect upon reconfig boot or hotplug of the device.
Upon successfully updating the permissions, only the new driver minor nodes get created with the modified set of file permissions. Existing driver minor nodes do not get modified.
The following options are supported:
Add a permission or aliases entry.
With the -a option specified, a permission entry (using the -m option) or a driver's aliases entry (using the -i option) can be added or updated. If a matching minor node permissions entry is encountered (having the same driver name and the minor node), it is replaced. If a matching aliases entry is encountered (having a different driver name and the same alias), an error is reported.
The -a and -d options are mutually exclusive.
Installs or modifies the driver on the system with a root directory of basedir rather than installing on the system executing update_drv.
Delete a permission or aliases entry.
The -m permission or -i identify-name option needs to be specified with the -d option.
The -d and -a options are mutually exclusive.
If the entry doesn't exist update_drv returns an error.
Force the system to reread the driver.conf file even if the driver module cannot be unloaded. See NOTES.
A white-space separated list of aliases for the driver. If -a or -d option is not specified then this option is ignored. The identify-name string is mandatory. If all aliases need to be removed, rem_drv(1M) is recommended.
Specify a white-space separated list of file system permissions for the device node of the device driver. If -a or -d option is not specified then, this option is ignored. The permission string is mandatory.
The following command adds or modifies the exisitng minor permissions entry of the clone driver:
example# update_drv -a -m 'llc1 777 joe staff' clone |
The following command removes all minor permission entries of the usbprn driver, the USB printer driver:
example# update_drv -d -m '* 0666 root sys' usbprn |
The following command adds a driver aliases entry of the ugen driver with the identity string of usb459,20:
example# update_drv -a -i '"usb459,20"' ugen |
The following command re-reads the driver.conf(4) file.
example# update_drv ohci |
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Availability |
SUNWcsu |
If -a or -d options are specified, update_drv does not re-read the driver.conf file.
A forced update of the driver.conf file reloads the driver.conf file without reloading the driver binary module. In this case, devices which can not be detached reference driver global properties from the old driver.conf file, while the remaining driver instances reference global properties in the new driver.conf file.
It is possible to add an alias , which changes the driver binding of a device already being managed by a different driver. A force update (-f) with the -a option tries to bind the new driver and reports an error if it cannot. If you specify both the -m and -i option, a force update tries to modify the alias even if permissions modification fails and vice-versa. A force update with the -d option tries to delete entries and reports the error if it cannot.
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | EXIT STATUS | ATTRIBUTES | SEE ALSO | NOTES