diff options
author | David S. Miller <davem@davemloft.net> | 2008-07-18 05:39:39 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2008-07-18 05:39:39 -0400 |
commit | 49997d75152b3d23c53b0fa730599f2f74c92c65 (patch) | |
tree | 46e93126170d02cfec9505172e545732c1b69656 /Documentation/i2c/chips/pca9539 | |
parent | a0c80b80e0fb48129e4e9d6a9ede914f9ff1850d (diff) | |
parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/powerpc/booting-without-of.txt
drivers/atm/Makefile
drivers/net/fs_enet/fs_enet-main.c
drivers/pci/pci-acpi.c
net/8021q/vlan.c
net/iucv/iucv.c
Diffstat (limited to 'Documentation/i2c/chips/pca9539')
-rw-r--r-- | Documentation/i2c/chips/pca9539 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/i2c/chips/pca9539 b/Documentation/i2c/chips/pca9539 index 1d81c530c4a5..6aff890088b1 100644 --- a/Documentation/i2c/chips/pca9539 +++ b/Documentation/i2c/chips/pca9539 | |||
@@ -7,7 +7,7 @@ drivers/gpio/pca9539.c instead. | |||
7 | Supported chips: | 7 | Supported chips: |
8 | * Philips PCA9539 | 8 | * Philips PCA9539 |
9 | Prefix: 'pca9539' | 9 | Prefix: 'pca9539' |
10 | Addresses scanned: 0x74 - 0x77 | 10 | Addresses scanned: none |
11 | Datasheet: | 11 | Datasheet: |
12 | http://www.semiconductors.philips.com/acrobat/datasheets/PCA9539_2.pdf | 12 | http://www.semiconductors.philips.com/acrobat/datasheets/PCA9539_2.pdf |
13 | 13 | ||
@@ -23,6 +23,14 @@ The input sense can also be inverted. | |||
23 | The 16 lines are split between two bytes. | 23 | The 16 lines are split between two bytes. |
24 | 24 | ||
25 | 25 | ||
26 | Detection | ||
27 | --------- | ||
28 | |||
29 | The PCA9539 is difficult to detect and not commonly found in PC machines, | ||
30 | so you have to pass the I2C bus and address of the installed PCA9539 | ||
31 | devices explicitly to the driver at load time via the force=... parameter. | ||
32 | |||
33 | |||
26 | Sysfs entries | 34 | Sysfs entries |
27 | ------------- | 35 | ------------- |
28 | 36 | ||