* Couldn't find reference for i2c_smbus functinos [not found] <8584FDC94AFF7640B17B8A89B23B19B34F6573@sbsserver.AlphionCorp.local> @ 2006-09-20 15:07 ` Sachin Rane 2006-09-20 16:27 ` Jenkins, Clive 2006-09-20 17:14 ` Eugene Surovegin 0 siblings, 2 replies; 3+ messages in thread From: Sachin Rane @ 2006-09-20 15:07 UTC (permalink / raw) To: linuxppc-embedded [-- Attachment #1: Type: text/plain, Size: 1441 bytes --] Hi, Following text is from "/usr/local/linux/Doumentation/dev-interface": ---------------------------------------------------------------------------------------------------------------------------------- You can do SMBus level transactions (see documentation file smbus-protocol for details) through the following functions: __s32 i2c_smbus_write_quick(int file, __u8 value); __s32 i2c_smbus_read_byte(int file); __s32 i2c_smbus_write_byte(int file, __u8 value); __s32 i2c_smbus_read_byte_data(int file, __u8 command); __s32 i2c_smbus_write_byte_data(int file, __u8 command, __u8 value); __s32 i2c_smbus_read_word_data(int file, __u8 command); __s32 i2c_smbus_write_word_data(int file, __u8 command, __u16 value); __s32 i2c_smbus_process_call(int file, __u8 command, __u16 value); __s32 i2c_smbus_read_block_data(int file, __u8 command, __u8 *values); __s32 i2c_smbus_write_block_data(int file, __u8 command, __u8 length, __u8 *values); --------------------------------------------------------------------------------------- I searched in the 2.6.13 version of Timesys and Suse linux, but I didn't find definition or declaration in file '/usr/include/linux/i2c-dev.h' and '/usr/include/linux/i2c.h'. Am I missing any information about the location of the above functions? Do I need to implement the above functions? Thanks and Regards, Sachin Rane [-- Attachment #2: Type: text/html, Size: 2259 bytes --] ^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: Couldn't find reference for i2c_smbus functinos 2006-09-20 15:07 ` Couldn't find reference for i2c_smbus functinos Sachin Rane @ 2006-09-20 16:27 ` Jenkins, Clive 2006-09-20 17:14 ` Eugene Surovegin 1 sibling, 0 replies; 3+ messages in thread From: Jenkins, Clive @ 2006-09-20 16:27 UTC (permalink / raw) To: Sachin Rane, linuxppc-embedded > You can do SMBus level transactions (see documentation file smbus-protocol > for details) through the following functions: > __s32 i2c_smbus_write_quick(int file, __u8 value); > ... > Am I missing any information about the location of the above functions? Try reading http://www.lm-sensors.org/browser/i2c/trunk/doc/dev-interface and other material on the lm-sensors site > Do I need to implement the above functions? No. ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Couldn't find reference for i2c_smbus functinos 2006-09-20 15:07 ` Couldn't find reference for i2c_smbus functinos Sachin Rane 2006-09-20 16:27 ` Jenkins, Clive @ 2006-09-20 17:14 ` Eugene Surovegin 1 sibling, 0 replies; 3+ messages in thread From: Eugene Surovegin @ 2006-09-20 17:14 UTC (permalink / raw) To: Sachin Rane; +Cc: linuxppc-embedded On Wed, Sep 20, 2006 at 11:07:52AM -0400, Sachin Rane wrote: > Hi, > > Following text is from "/usr/local/linux/Doumentation/dev-interface": > ---------------------------------------------------------------------------------------------------------------------------------- > You can do SMBus level transactions (see documentation file smbus-protocol > for details) through the following functions: > __s32 i2c_smbus_write_quick(int file, __u8 value); > __s32 i2c_smbus_read_byte(int file); > __s32 i2c_smbus_write_byte(int file, __u8 value); > __s32 i2c_smbus_read_byte_data(int file, __u8 command); > __s32 i2c_smbus_write_byte_data(int file, __u8 command, __u8 value); > __s32 i2c_smbus_read_word_data(int file, __u8 command); > __s32 i2c_smbus_write_word_data(int file, __u8 command, __u16 value); > __s32 i2c_smbus_process_call(int file, __u8 command, __u16 value); > __s32 i2c_smbus_read_block_data(int file, __u8 command, __u8 *values); > __s32 i2c_smbus_write_block_data(int file, __u8 command, __u8 length, > __u8 *values); > --------------------------------------------------------------------------------------- > > I searched in the 2.6.13 version of Timesys and Suse linux, but I > didn't find definition or declaration in file > '/usr/include/linux/i2c-dev.h' and '/usr/include/linux/i2c.h'. Please, look for this functions in the kernel source tree, not in user-space headers. -- Eugene ^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-09-20 15:07 ` Couldn't find reference for i2c_smbus functinos Sachin Rane
2006-09-20 16:27 ` Jenkins, Clive
2006-09-20 17:14 ` Eugene Surovegin
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