---

yaml --- r: 18412 b: refs/heads/master c: 9904f22 h: refs/heads/master v: v3
git-mirror · Jan 14, 2006 · 1f18a60 · 1f18a60
1 parent b96f961
commit 1f18a60
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Showing 5 changed files with 603 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2e5a7bd978bf4118a0c8edf2e6ff81d0a72fee47
+refs/heads/master: 9904f22a7202c6b54e96b0cc9870817013c350a1
diff --git a/trunk/drivers/spi/Kconfig b/trunk/drivers/spi/Kconfig
@@ -51,6 +51,19 @@ config SPI_MASTER
 comment "SPI Master Controller Drivers"
 	depends on SPI_MASTER
 
+config SPI_BITBANG
+	tristate "Bitbanging SPI master"
+	depends on SPI_MASTER && EXPERIMENTAL
+	help
+	  With a few GPIO pins, your system can bitbang the SPI protocol.
+	  Select this to get SPI support through I/O pins (GPIO, parallel
+	  port, etc).  Or, some systems' SPI master controller drivers use
+	  this code to manage the per-word or per-transfer accesses to the
+	  hardware shift registers.
+
+	  This is library code, and is automatically selected by drivers that
+	  need it.  You only need to select this explicitly to support driver
+	  modules that aren't part of this kernel tree.
 
 #
 # Add new SPI master controllers in alphabetical order above this line

diff --git a/trunk/drivers/spi/Makefile b/trunk/drivers/spi/Makefile
@@ -11,6 +11,7 @@ endif
 obj-$(CONFIG_SPI_MASTER)		+= spi.o
 
 # SPI master controller drivers (bus)
+obj-$(CONFIG_SPI_BITBANG)		+= spi_bitbang.o
 # 	... add above this line ...
 
 # SPI protocol drivers (device/link on bus)