drivers/zio-loop: a loop-back zio driver, with cdev support

The driver supports an output cset that loops to an input cset, and two output csets of 1 channel each, whose output is returned to two char devices. Intended for demonstration and testing. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Federico Vaga <federico.vaga@gmail.com>

drivers/zio-loop: a loop-back zio driver, with cdev support
The driver supports an output cset that loops to an input cset, and two output csets of 1 channel each, whose output is returned to two char devices. Intended for demonstration and testing. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Federico Vaga <federico.vaga@gmail.com>
b0fbf525 · Alessandro Rubini · a9e93be9 · b0fbf525 · b0fbf525
Commit b0fbf525 authored Nov 01, 2012 by Alessandro Rubini
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Makefile drivers/Makefile +1 -0

zio-loop.c drivers/zio-loop.c +519 -0

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--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -3,6 +3,7 @@ LINUX ?= /lib/modules/$(shell uname -r)/build
 EXTRA_CFLAGS += -I$(obj)/../include

 obj-m = zio-zero.o
+obj-m += zio-loop.o
 obj-m += zio-gpio.o
 ifdef CONFIG_SPI
 obj-m += zio-ad788x.o

--- a/drivers/zio-loop.c
+++ b/drivers/zio-loop.c