[lm-sensors] [PATCH] hwmon: Fix regression caused by typo in lm90.c

Mark M. Hoffman mhoffman at lightlink.com
Tue Jul 31 03:39:58 CEST 2007

From: Guillaume Chazarain <guichaz at yahoo.fr>

The commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=32c82a934759b2c9939c9e25865c2d7d1204b9e8
broke lm90 for my (Asus V6VA) laptop.

Before 2.6.23-rc1 and with the following patch, I get:

[g ~]$ sensors
Adapter: SMBus I801 adapter at 0400
M/B Temp:    +64°C  (low  =    +0°C, high =  +127°C)
CPU Temp:  +78.9°C  (low  = +73.2°C, high = +88.2°C)
M/B Crit:   +105°C  (hyst =   +95°C)
CPU Crit:   +105°C  (hyst =   +95°C)

Which regressed into:

[g ~]$ sensors
No sensors found!
Make sure you loaded all the kernel drivers you need.
Try sensors-detect to find out which these are.
zsh: 2701 exit 1     sensors

and dmesg contains:

i2c-adapter i2c-0: Unsupported chip (man_id=0x4D, chip_id=0x4D).

It seems to be a typo, as address 0X4F is mentionned nowhere else in the file,
and my chip is actually at 0x4C.

Signed-off-by: Guillaume Chazarain <guichaz at yahoo.fr>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman at lightlink.com>
 drivers/hwmon/lm90.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 48833ff..af541d6 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -585,7 +585,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 			 * those of the man_id register.
 			if (chip_id == man_id
-			 && (address == 0x4F || address == 0x4D)
+			 && (address == 0x4C || address == 0x4D)
 			 && (reg_config1 & 0x1F) == (man_id & 0x0F)
 			 && reg_convrate <= 0x09) {
 			 	kind = max6657;

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