Date: Mon, 6 Jan 2003 10:22:03 +0100 From: Mark Santcroos <marks@ripe.net> To: shubha mr <shubha_mr@yahoo.com> Cc: freebsd-questions@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: help-urgent Message-ID: <20030106092203.GA620@laptop.6bone.nl> In-Reply-To: <20030106062513.51746.qmail@web41203.mail.yahoo.com> References: <20030106062513.51746.qmail@web41203.mail.yahoo.com>
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Don't think these lists are the best place for this question but alas... On Mon, Jan 06, 2003 at 06:25:13AM +0000, shubha mr wrote: > If I have to write to a register at offset say x,in > the pci configuration space,how do I do it? If it is > using pci_read_config and pci_write_config,how does > the system know where the pci reg base address of my > device is? val = pci_read_config(dev, OFFSET, len); dev: the PCI device your driver is working on OFFSET: the position you want to read from len: the number of bytes you want to read Because you specify the pci dev the system knows where to read from. Look at any random pci driver in sys/ and it will all become clear. Mark -- Mark Santcroos RIPE Network Coordination Centre http://www.ripe.net/home/mark/ New Projects Group/TTM To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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