Specifying Module Parameters - Red Hat LINUX 7.2 Reference Manual

312
A.1 Specifying Module Parameters
If you are providing parameters upon loading a module, you can usually specify them using one of
two different methods:
• Specify a full set of parameters in one statement. For example, the parameter cdu31=0x340,0
could be used with a Sony CDU 31 or 33 at port 340 with no IRQ.
• Specify the parameters individually. This method is used when one or more parameters in the first
set are not needed. For example, cdu31_port=0x340 cdu31a_irq=0 can be used as the
parameter for the same CD-ROM used as an example for the first method. An OR is used in the
CD-ROM, SCSI, and Ethernet tables in this appendix to show where the first parameter method
stops and the second method begins.
Only use one method, and not both, when loading a module with particular
parameters.
When a parameter has commas, make sure you do not put a space after a
comma.
A.2 CD-ROM Module Parameters
Not all of the CD-ROM drives that are listed are supported. Please check the
Hardware Compatibility List on Red Hat's website at http://hardware.red-
hat.com to make sure your CD-ROM drive is supported.
Even though parameters are specified after loading the driver disk and specifying the device, one
of the more commonly used parameters (hd X =cdrom) can be entered at the boot prompt (boot:)
during installation. This exception to the rule is allowed since it deals with support for IDE/ATAPI
CD-ROMs, which is already part of the kernel.
Appendix A:General Parameters and Modules
Note
CAUTION
Note