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authorMika Laitio <lamikr@pilppa.org>2011-01-12 17:01:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 08:03:22 -0800
commit17fecb5582962c2ca5627a51ec9ab0979fb673ef (patch)
tree108d8b25267e91ec6aeb0781bc4f705e8296541f /Documentation/w1/slaves/00-INDEX
parent496fc1a68a45ae159d26331775411f6fea36d4d3 (diff)
w1: DS2423 counter driver and documentation
This is a 1-wire/w1 DS2423 slave driver for reading the values from all 4 counters available DS2423 devices by using standard w1_slave file. In ds2423 the counters are tied to ram pages 12-15 in and each of those ram-pages. Each of these counter values (and asoociated ram page values) are represented as a own line in w1_slave file. Driver has been tested on mips and x86. usage example: cat /sys/bus/w1/devices/1d-00000009b964/w1_slave 00 02 00 00 00 00 00 00 00 6d 38 00 ff ff 00 00 fe ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 02 00 00 00 00 00 00 00 e0 1f 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 5a 0e 5f 18 00 00 00 00 0b 28 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=408882778 00 05 00 00 00 00 00 00 00 8d 39 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff crc=YES c=5 Patch includes also the documentation. [randy.dunlap@oracle.com: fix ds2423 build, needs to select CRC16] Signed-off-by: Mika Laitio <lamikr@pilppa.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/w1/slaves/00-INDEX')
-rw-r--r--Documentation/w1/slaves/00-INDEX2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX
index f8101d6b07b7..75613c9ac4db 100644
--- a/Documentation/w1/slaves/00-INDEX
+++ b/Documentation/w1/slaves/00-INDEX
@@ -2,3 +2,5 @@
- This file
w1_therm
- The Maxim/Dallas Semiconductor ds18*20 temperature sensor.
+w1_ds2423
+ - The Maxim/Dallas Semiconductor ds2423 counter device.

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