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authorMatt Campbell <mattrcampbell@gmail.com>2015-04-28 14:44:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-24 22:08:59 +0300
commitd9411e57dc7fcdbf28eb825d090b06b4248a95bc (patch)
treeecb950c779a3d706ae9679983e0fab66c911b5dd /Documentation/ABI
parentf7134eea05b2fb4a2c0935f8a540539fff01f3eb (diff)
downloadlinux-d9411e57dc7fcdbf28eb825d090b06b4248a95bc.tar.xz
w1: Add support for DS28EA00 sequence to w1-therm
This patch provides support for the DS28EA00 digital thermometer. The DS28EA00 provides an additional two pins for implementing a sequence detection algorithm. This feature allows you to determine the physical location of the chip in the 1-wire bus without needing pre-existing knowledge of the bus ordering. Support is provided through the sysfs w1_seq file. The file will contain a single line with an integer value representing the device index in the bus starting at 0. Signed-off-by: Matt Campbell <mattrcampbell@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/stable/sysfs-driver-w1_ds28ea006
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-w1_ds28ea00 b/Documentation/ABI/stable/sysfs-driver-w1_ds28ea00
new file mode 100644
index 000000000000..e928def14f28
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-w1_ds28ea00
@@ -0,0 +1,6 @@
+What: /sys/bus/w1/devices/.../w1_seq
+Date: Apr 2015
+Contact: Matt Campbell <mattrcampbell@gmail.com>
+Description: Support for the DS28EA00 chain sequence function
+ see Documentation/w1/slaves/w1_therm for detailed information
+Users: any user space application which wants to communicate with DS28EA00