diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-06-27 20:39:22 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-15 16:03:02 +0200 |
| commit | baa293e9544bea71361950d071579f0e4d5713ed (patch) | |
| tree | 29e0400c806016783a3fd7a380be40a201956653 /Documentation/bt8xxgpio.txt | |
| parent | docs: admin-guide: add a series of orphaned documents (diff) | |
| download | linux-baa293e9544bea71361950d071579f0e4d5713ed.tar.xz linux-baa293e9544bea71361950d071579f0e4d5713ed.zip | |
docs: driver-api: add a series of orphaned documents
There are lots of documents under Documentation/*.txt and a few other
orphan documents elsehwere that belong to the driver-API book.
Move them to their right place.
Reviewed-by: Cornelia Huck <cohuck@redhat.com> # vfio-related parts
Acked-by: Logan Gunthorpe <logang@deltatee.com> # switchtec
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/bt8xxgpio.txt')
| -rw-r--r-- | Documentation/bt8xxgpio.txt | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/Documentation/bt8xxgpio.txt b/Documentation/bt8xxgpio.txt deleted file mode 100644 index a845feb074de..000000000000 --- a/Documentation/bt8xxgpio.txt +++ /dev/null @@ -1,62 +0,0 @@ -=================================================================== -A driver for a selfmade cheap BT8xx based PCI GPIO-card (bt8xxgpio) -=================================================================== - -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 - |