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| author | Scott Alfter <scott@alfter.us> | 2014-06-17 20:42:05 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-20 00:45:14 (GMT) |
| commit | 94859308a21b2bbf3d7c48789513c0c4a9ea7de1 (patch) | |
| tree | a929e9e6f3dd3d81deeee65c6eb221c8488435a1 /drivers/w1/w1_family.h | |
| parent | 7242d42ace30825553eabd424b41b03136d37faa (diff) | |
| download | linux-94859308a21b2bbf3d7c48789513c0c4a9ea7de1.tar.xz | |
w1: new w1_ds2406 driver
Some preliminary work at making use of this driver led me to implement
CRC-16 checks on read and write to deal with the occasional glitchiness of
the 1-Wire bus. The revised driver (attached) returns an I/O error if the
CRC check fails. When reading the chip's state, either you get a valid
indication or you get an I/O error. When changing its state, either the
change is successful or an I/O error is returned.
Signed-off-by: Scott Alfter <scott@alfter.us>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/w1/w1_family.h')
| -rw-r--r-- | drivers/w1/w1_family.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h index 26ca134..0d18365 100644 --- a/drivers/w1/w1_family.h +++ b/drivers/w1/w1_family.h @@ -40,6 +40,7 @@ #define W1_FAMILY_DS2760 0x30 #define W1_FAMILY_DS2780 0x32 #define W1_FAMILY_DS2413 0x3A +#define W1_FAMILY_DS2406 0x12 #define W1_THERM_DS1825 0x3B #define W1_FAMILY_DS2781 0x3D #define W1_THERM_DS28EA00 0x42 |