bus_space_tag, bus_space_handle
John Baldwin
jhb at freebsd.org
Thu Mar 11 14:17:51 UTC 2010
On Thursday 11 March 2010 4:04:52 am Cole wrote:
> Hi.
>
> 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.
>
> 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.
>
> Im currently using FreeBSD 7.x.
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.
--
John Baldwin
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