summaryrefslogtreecommitdiff
path: root/include/linux/i2c.h
diff options
context:
space:
mode:
authorJean Delvare <khali@linux-fr.org>2008-07-15 00:38:29 +0400
committerJean Delvare <khali@mahadeva.delvare>2008-07-15 00:38:29 +0400
commit3401b2fff38fbb8b73ea6bcc69a8370ae5d2a7a0 (patch)
tree8afd803ea49cf8bf8f1db90eabf5c8cd03808ef2 /include/linux/i2c.h
parentc1b6b4f2342d073698dfc2547240c35045a1d00e (diff)
downloadlinux-3401b2fff38fbb8b73ea6bcc69a8370ae5d2a7a0.tar.xz
i2c: Let bus drivers add SPD to their class
Let general purpose I2C/SMBus bus drivers add SPD to their class. Once this is done, we will be able to tell the eeprom driver to only probe for SPD EEPROMs and similar on these buses. Note that I took a conservative approach here, adding I2C_CLASS_SPD to many drivers that have no idea whether they can host SPD EEPROMs or not. This is to make sure that the eeprom driver doesn't stop probing buses where SPD EEPROMs or equivalent live. So, bus driver maintainers and users should feel free to remove the SPD class from drivers those buses never have SPD EEPROMs or they don't want the eeprom driver to bind to them. Likewise, feel free to add the SPD class to any bus driver I might have missed. Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r--include/linux/i2c.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 145797fe6a31..839d0ea3dca3 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -353,6 +353,7 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
#define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */
#define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */
#define I2C_CLASS_SOUND (1<<6) /* sound devices */
+#define I2C_CLASS_SPD (1<<7) /* SPD EEPROMs and similar */
#define I2C_CLASS_ALL (UINT_MAX) /* all of the above */
/* i2c_client_address_data is the struct for holding default client