Add I2C classes for analog and digital cameras, and fix a typo.

diff -Nru a/include/linux/i2c.h b/include/linux/i2c.h
--- a/include/linux/i2c.h	Wed May  7 01:29:59 2003
+++ b/include/linux/i2c.h	Wed May  7 01:29:59 2003
@@ -280,10 +280,12 @@
 						/* Must equal I2C_M_TEN below */
 
 /* i2c adapter classes (bitmask) */
-#define I2C_ADAP_CLASS_SMBUS      (1<<0)        /* lm_sensors, ... */
-#define I2C_ADAP_CLASS_TV_ANALOG  (1<<1)        /* bttv + friends */
-#define I2C_ADAP_CLASS_TV_DIGINAL (1<<2)        /* dbv cards */
-#define I2C_ADAP_CLASS_DDC        (1<<3)        /* i2c-matroxfb ? */
+#define I2C_ADAP_CLASS_SMBUS        (1<<0)      /* lm_sensors, ... */
+#define I2C_ADAP_CLASS_TV_ANALOG    (1<<1)      /* bttv + friends */
+#define I2C_ADAP_CLASS_TV_DIGITAL   (1<<2)      /* dbv cards */
+#define I2C_ADAP_CLASS_DDC          (1<<3)      /* i2c-matroxfb ? */
+#define I2C_ADAP_CLASS_CAM_ANALOG   (1<<4)      /* camera with analog CCD */
+#define I2C_ADAP_CLASS_CAM_DIGITAL  (1<<5)      /* most webcams */
 
 /* i2c_client_address_data is the struct for holding default client
  * addresses for a driver and for the parameters supplied on the