Date: Thu, 11 Mar 2010 14:17:46 -0500 From: Alexander Kabaev <kabaev@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: bus_space_tag, bus_space_handle Message-ID: <20100311141746.7bce7b98@kan.dnsalias.net> In-Reply-To: <201003110814.31009.jhb@freebsd.org> References: <9f206d1a1003110104p2f329103mc882c99bcc15ea51@mail.gmail.com> <201003110814.31009.jhb@freebsd.org>
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--Sig_/KkWBbKu+E5NGgF+tVYd=RJW Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 11 Mar 2010 08:14:30 -0500 John Baldwin <jhb@freebsd.org> wrote: > On Thursday 11 March 2010 4:04:52 am Cole wrote: > > Hi. > >=20 > > Im currently needing to write to a few registers for a PCI device. > > The driver is provided, but it does not contain support for writing > > specific registers itself. I also do not with to modify the driver. > >=20 > > I would like to know what the best method would be for writing to > > these registers, the best way to go about getting bus_space_tag, and > > handle for the connected pci device. > >=20 > > Im currently using FreeBSD 7.x. >=20 > You will most likely need to modify the driver. The PCI bus code > only hands out valid resources for a given BAR to the device_t for a > given device. >=20 > --=20 > John Baldwin I used /dev/mem and dd in the past for this purpose. Not pretty and custom tool beats it any day, but it does work. --=20 Alexander Kabaev --Sig_/KkWBbKu+E5NGgF+tVYd=RJW Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iD8DBQFLmUHeQ6z1jMm+XZYRAuT1AKDA7Ac2GZxICvQyyc/qgZySPjdudACeIvJh 89txqnr8KKl5cjAQ3z/P2Lg= =8xmK -----END PGP SIGNATURE----- --Sig_/KkWBbKu+E5NGgF+tVYd=RJW--
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