Documentation updates, and a very small print fix in i2cdump.c

Note especially the autoloading of i2c-dev by adding the following line
to /etc/module.conf (or /etc/conf.module):
  alias char-major-89 i2c-dev


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@166 7894878c-1315-0410-8ee3-d5d059ff63e0

doc/modules

@@ -33,6 +33,10 @@ enter at the insmod command, in the configuration file. The syntax is
 as follows:
   options i2c-core debug=2
 
+Finally, it is possible to auto-load the i2c-dev module if a /dev/i2c-*
+file is accessed. You need the following line in the configuration file:
+  alias char-major-89 i2c-dev
+
 With the above, the managing of all those modules is suddenly no problem
 at all!
 
@@ -45,6 +49,9 @@ at all!
 (src) i2c-proc: i2c-core
   Creates /proc/bus/i2c* files.
 
+(src) i2c-dev: smbus i2c-core
+  Grants access to /dev/i2c-* files
+
 (src) smbus: i2c-core
   SMBus emulation on i2c busses. Base algorithm, on which SMBus-only adapters
   rely.

doc/progs

@@ -7,6 +7,13 @@ this package.
   file. It read /proc/bus/i2c (or the file specified on the command-line),
   and prints to stdout `bus' statements reflecting the currently detected
   adapters.
+* prog/dump/i2cdump (written in C, not installed)
+  This program helps to dump the registers of a I2C device that understands
+  the 'byte data' or 'word data' SMBus protocols. Usual syntax:
+    ./i2cdump 0 0x49 b
+  Here the '0' stands for i2c-0 (check /proc/bus/i2c to find out which bus
+  you need), '0x49' is the device address, and 'b' or 'w' stands for byte
+  or word data.
 * prog/dump/isadump (written in C, not installed)
   This program helps to dump the registers of LM78-like chips, or more
   exactly, chips which use an I/O-port for its address and one as its
@@ -16,6 +23,9 @@ this package.
   This program decodes the information generated by the `eeprom.o' module.
   It will only work for the installed eeprom module from the src/ directory,
   not for the old one in the i2c/drivers/ directory.
+* prog/mkdev/mkdev.sh (written in bash, not installed)
+  This script creates the /dev/i2c-* files. Please check the source before
+  you run it, as you may need to set some variables first.
 * prog/sensors/sensors (written in C, installed by `make install')
   This pretty-prints the information provided by the modules. It is a normal
   console application, using stdin and stdout. It is essential, because

prog/dump/i2cdump.c

@@ -97,7 +97,7 @@ int main(int argc, char *argv[])
  
   fprintf(stderr,"  WARNING! This program can confuse your I2C bus, "
           "cause data loss and worse!\n");
-  fprintf(stderr,"  I will probe file %s, address %x, mode %s\n",
+  fprintf(stderr,"  I will probe file %s, address 0x%x, mode %s\n",
           filename,address,size == SMBUS_BYTE_DATA?"byte":"word");
   fprintf(stderr,"  You have five seconds to reconsider and press CTRL-C!\n\n");
   sleep(5);