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-rw-r--r--Documentation/i2c/busses/i2c-parport-light15
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/i2c/busses/i2c-parport-light b/Documentation/i2c/busses/i2c-parport-light
index 28743647852..7071b8ba0af 100644
--- a/Documentation/i2c/busses/i2c-parport-light
+++ b/Documentation/i2c/busses/i2c-parport-light
@@ -1,11 +1,22 @@
Kernel driver i2c-parport-light
-Author: Jean Delvare <khali@linux-fr.org>
+Author: Jean Delvare <jdelvare@suse.de>
This driver is a light version of i2c-parport. It doesn't depend
on the parport driver, and uses direct I/O access instead. This might be
-prefered on embedded systems where wasting memory for the clean but heavy
+preferred on embedded systems where wasting memory for the clean but heavy
parport handling is not an option. The drawback is a reduced portability
and the impossibility to daisy-chain other parallel port devices.
Please see i2c-parport for documentation.
+
+Module parameters:
+
+* type: type of adapter (see i2c-parport or modinfo)
+
+* base: base I/O address
+ Default is 0x378 which is fairly common for parallel ports, at least on PC.
+
+* irq: optional IRQ
+ This must be passed if you want SMBus alert support, assuming your adapter
+ actually supports this.