https://github.com/torvalds/linux
Revision 87885b700b9b697ce8601d415cb905862750c3b9 authored by Linus Torvalds on 21 November 2012, 04:50:07 UTC, committed by Linus Torvalds on 21 November 2012, 04:50:07 UTC
Pull KVM maintainership update from Avi Kivity: "After many years of maintaining KVM, I am moving on. It was a real pleasure for me to work with so many talented and dedicated hackers on this project. Replacing me will be one of those talented and dedicated hackers, Gleb, who has authored hundreds of patches in and around KVM." * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: taking co-maintenance KVM: Retire as maintainer
Tip revision: 87885b700b9b697ce8601d415cb905862750c3b9 authored by Linus Torvalds on 21 November 2012, 04:50:07 UTC
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Tip revision: 87885b7
bt8xxgpio.txt
===============================================================
== BT8XXGPIO driver ==
== ==
== A driver for a selfmade cheap BT8xx based PCI GPIO-card ==
== ==
== For advanced documentation, see ==
== http://www.bu3sch.de/btgpio.php ==
===============================================================
A generic digital 24-port PCI GPIO card can be built out of an ordinary
Brooktree bt848, bt849, bt878 or bt879 based analog TV tuner card. The
Brooktree chip is used in old analog Hauppauge WinTV PCI cards. You can easily
find them used for low prices on the net.
The bt8xx chip does have 24 digital GPIO ports.
These ports are accessible via 24 pins on the SMD chip package.
==============================================
== How to physically access the GPIO pins ==
==============================================
The are several ways to access these pins. One might unsolder the whole chip
and put it on a custom PCI board, or one might only unsolder each individual
GPIO pin and solder that to some tiny wire. As the chip package really is tiny
there are some advanced soldering skills needed in any case.
The physical pinouts are drawn in the following ASCII art.
The GPIO pins are marked with G00-G23
G G G G G G G G G G G G G G G G G G
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
---------------------------------------------------------------------------
--| ^ ^ |--
--| pin 86 pin 67 |--
--| |--
--| pin 61 > |-- G18
--| |-- G19
--| |-- G20
--| |-- G21
--| |-- G22
--| pin 56 > |-- G23
--| |--
--| Brooktree 878/879 |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| |--
--| O |--
--| |--
---------------------------------------------------------------------------
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
^
This is pin 1
Computing file changes ...
