Re: Checking module parameters

From: Stefan Richter
Date: Mon Jan 19 2009 - 05:19:47 EST

Nick Craig-Wood wrote:
> David Wagner <daw@xxxxxxxxxxxxxxx> wrote:
>> Is there a way to tell what options have been applied to a currently
>> loaded kernel module?
>> I'm trying to force libata to use 1.5Gbps rather than 3Gbps,
> I had to do this recently (under debian I ended up putting
> "libata force=1.5Gbps" into /etc/modules)
> You can check it is working by looking for something like this in the log
> [ 2.345058] ata1: FORCE: PHY spd limit set to 1.5Gbps
> [ 2.345058] ata1: SATA max UDMA/133 abar m2048@0xfb106000 port 0xfb106100 irq 218

There is also /sys/module/*/parameters/* which can be read and in some
cases even be written.
Stefan Richter
-=====-==--= ---= =--==
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at