Messages in this thread | | | Date | Mon, 19 Jan 2009 12:44:36 +0000 | From | Nick Craig-Wood <> | Subject | Re: Checking module parameters |
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On Mon, Jan 19, 2009 at 11:19:34AM +0100, Stefan Richter wrote: > Nick Craig-Wood wrote: > > David Wagner <daw@cs.berkeley.edu> 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.
It doesn't appear to show the force parameter. From the same server as above :-
$ more /sys/module/libata/parameters/* | cat :::::::::::::: /sys/module/libata/parameters/acpi_gtf_filter :::::::::::::: 3 :::::::::::::: /sys/module/libata/parameters/allow_tpm :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/ata_probe_timeout :::::::::::::: 7500 :::::::::::::: /sys/module/libata/parameters/atapi_dmadir :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/atapi_enabled :::::::::::::: 1 :::::::::::::: /sys/module/libata/parameters/atapi_passthru16 :::::::::::::: 1 :::::::::::::: /sys/module/libata/parameters/dma :::::::::::::: 7 :::::::::::::: /sys/module/libata/parameters/fua :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/ignore_hpa :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/noacpi :::::::::::::: 0
-- Nick Craig-Wood <nick@craig-wood.com> -- http://www.craig-wood.com/nick
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