If a device cannot be initialized with
/sbin/hwup, the agent searches the module
maps for a suitable driver. First, it searches the maps
/etc/hotplug/*.handmap. If it does not
find the driver there, it also searches in
To use a driver other than the standard driver for the kernel,
enter this in
this is the
first file read.
USB agent also searches for user-mode drivers in the
drivers are programs that control access to a
device instead of a kernel module. In this way, it is possible
to call executable programs for particular devices.
In the case of PCI devices, pci.agent first
queries hwinfo about driver modules. Only if
hwinfo does not know of any drivers, the agent looks
pci.handmap and the kernel map. Because
hwinfo has already looked there, the inquiry must fail.
hwinfo has an additional database
for driver mappings. However, it also loads
pci.handmap to make sure
that any individual mapping in this file is
The agent pci.agent can be limited
to devices of a certain type or driver modules from a certain
In the first case, the PCI device classes found at the end of the
/usr/share/pci.ids can be entered
in the variables
HOTPLUG_PCI_CLASSES_BLACKLIST in the file
/etc/sysconfig/hotplug. For the second case,
specify one or several directories in the variables
from the excluded directories are not loaded. In both
cases, an empty whitelist implies that all possibilities except
for those excluded in the blacklist are permitted.
You can also exclude individual modules from loading. Just enter the modules
that should never be loaded by an agent
in the file
every module name in a separate line.
If several suitable modules are found in a map file, only the first module
is loaded. To load all modules, set the variable
However, it is better to create a separate device configuration
for this device.
Modules loaded with hwup are not affected by this. Automatic module loading only takes place in exceptional cases and will be further limited in future versions of SUSE LINUX. But if a suitable module was found, the agent creates a hwup configuration file, which will be used next time. This increases the speed of device initialization.