Changeset 13 for lm-sensors/trunk/kernel/include/smbus.h

Timestamp:

11/26/98 11:16:08 (14 years ago)

Author:

frodo

Message:

Example lm_sensors-2 driver

Though it is called the LM78 driver, there is not too much LM78 specific
code in it; it can better be seen as an example code skeleton for other
drivers. Right now, it creats a file /proc/sensors-test, which contains
a list of busses it registered itself on. Stupid, but very useful for
testing purposes!

You need a 2.0 kernel for lm78.o to insert (or hack the /proc system
specific parts; see lm78.c of lm_sensors version 1 how to do this).
Other parts of lm_sensors-2 are not tested for 2.1 kernels either, but
I am certain it won't work in this case :-).

See the TODO list to get some idea what is left to do, choose something
and implement it. Or not :-). But please, send a note to the mailing
list when you start on something, to avoid duplicate work...

Other notable changes:

the smbus_access routines now use (the more logical) i2c_adapter
structure, instead of smbus_adapter.

Files:

• lm-sensors/trunk/kernel/include/smbus.h (modified) (12 diffs)

lm-sensors/trunk/kernel/include/smbus.h

@@ -131 +131 @@
 #define i2c_is_smbus_client(clientptr) \
         ((clientptr)->adapter->algo->id == ALGO_SMBUS)
+#define i2c_is_smbus_adapter(adapptr) \
+        ((adapptr)->algo->id == ALGO_SMBUS)
 
 /* This union is used within smbus_access routines */
@@ -158 +160 @@
 /* This is the very generalized SMBus access routine. You probably do not
    want to use this, though; one of the functions below may be much easier,
-   and probably just as fast. */
-extern s32 smbus_access (struct smbus_adapter * adapter, u8 addr, 
+   and probably just as fast. 
+   Note that we use i2c_adapter here, because you do not need a specific
+   smbus adapter to call this function. */
+extern s32 smbus_access (struct i2c_adapter * adapter, u8 addr, 
                          char read_write, u8 command, int size,
                          union smbus_data * data);
@@ -166 +170 @@
    conventions of smbus_access. */
 
-extern inline s32 smbus_write_quick(struct smbus_adapter * adapter, u8 addr, 
+extern inline s32 smbus_write_quick(struct i2c_adapter * adapter, u8 addr, 
                                     u8 value)
 {
@@ -172 +176 @@
 }
 
-extern inline s32 smbus_read_byte(struct smbus_adapter * adapter,u8 addr)
+extern inline s32 smbus_read_byte(struct i2c_adapter * adapter,u8 addr)
 {
   union smbus_data data;
@@ -181 +185 @@
 }
 
-extern inline s32 smbus_write_byte(struct smbus_adapter * adapter, u8 addr, 
+extern inline s32 smbus_write_byte(struct i2c_adapter * adapter, u8 addr, 
                                    u8 value)
 {
@@ -187 +191 @@
 }
 
-extern inline s32 smbus_read_byte_data(struct smbus_adapter * adapter,
+extern inline s32 smbus_read_byte_data(struct i2c_adapter * adapter,
                                        u8 addr, u8 command)
 {
@@ -197 +201 @@
 }
 
-extern inline s32 smbus_write_byte_data(struct smbus_adapter * adapter,
+extern inline s32 smbus_write_byte_data(struct i2c_adapter * adapter,
                                         u8 addr, u8 command, u8 value)
 {
@@ -205 +209 @@
 }
 
-extern inline s32 smbus_read_word_data(struct smbus_adapter * adapter,
+extern inline s32 smbus_read_word_data(struct i2c_adapter * adapter,
                                        u8 addr, u8 command)
 {
@@ -215 +219 @@
 }
 
-extern inline s32 smbus_write_word_data(struct smbus_adapter * adapter,
+extern inline s32 smbus_write_word_data(struct i2c_adapter * adapter,
                                         u8 addr, u8 command, u16 value)
 {
@@ -223 +227 @@
 }
 
-extern inline s32 smbus_process_call(struct smbus_adapter * adapter,
+extern inline s32 smbus_process_call(struct i2c_adapter * adapter,
                                      u8 addr, u8 command, u16 value)
 {
@@ -235 +239 @@
 
 /* Returns the number of read bytes */
-extern inline s32 smbus_read_block_data(struct smbus_adapter * adapter,
+extern inline s32 smbus_read_block_data(struct i2c_adapter * adapter,
                                         u8 addr, u8 command, u8 *values)
 {
@@ -249 +253 @@
 }
 
-extern inline int smbus_write_block_data(struct smbus_adapter * adapter,
+extern inline int smbus_write_block_data(struct i2c_adapter * adapter,
                                          u8 addr, u8 command, u8 length,
                                          u8 *values)