Date: Thu, 4 Jun 2009 08:22:40 +0200 From: Marc Loerner <marc.loerner@hob.de> To: freebsd-drivers@freebsd.org Subject: Re: How do I pass configuration parameters to a FreeBSD Device Driver ? Message-ID: <200906040822.41153.marc.loerner@hob.de> In-Reply-To: <75E1A2A7D185F841A975979B0906BBA65A4D0C6595@AVEXMB1.qlogic.org> References: <75E1A2A7D185F841A975979B0906BBA65A4D0C658A@AVEXMB1.qlogic.org> <4A272BF7.8060604@yahoo.com> <75E1A2A7D185F841A975979B0906BBA65A4D0C6595@AVEXMB1.qlogic.org>
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Am Donnerstag 04 Juni 2009 04:27:25 schrieb David Somayajulu: > Larry Maloney wrote: > > David Somayajulu wrote: > > > Hi All, > > > I would appreciate if you could let me know, how I can pass > > > > configuration parameters to a device driver, which can be processed > > during either probe() or attach() ? Is there a way to read them from a > > conf file of some sort ? Basically, I am interested in setting some > > tunable parameters during driver initialization, without needing to > > recompile the driver every time. > > > > > thanks > > > david Somayajulu > > > > > > _______________________________________________ > > > freebsd-drivers@freebsd.org mailing list > > > http://lists.freebsd.org/mailman/listinfo/freebsd-drivers > > > To unsubscribe, send any mail to "freebsd-drivers- > > > > unsubscribe@freebsd.org" > > > > > > Isn't that what the hints file is for? > > Sorry, I am sort of new to FreeBSD. From what I understand > /boot/device.hints gets read during boot time, the values cannot be changed > by the user while the kernel is running - am I correct ? > > I have a loadable driver module and would like to do the following: > 1. Set some tunable parameters of the driver. > 2. Load the driver. Run a few tests. > 3. Unload the driver. > 4. repeat steps 1 thru 3. > I think exactly what you search is sysctls. There you have tunables to change at runtime Regards, Marc > > Larry > > > > -- > > ============================== > > Larry P. Maloney > > CEO/CTO SoftNet Solutions > > > > Phone: 650-961-2315 > > Web: www.softnetsolution.com > > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org"
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