ok gang, we now have rudimentary versioning in i2c. i2c.h contains: #define I2C_DATE "20011118" #define I2C_VERSION "2.6.2" now how am I supposed to use this in an ifdef? I want to add block read capability to eeprom, but only if it's supported in i2c. So i need #if I2C_VERSION > 2.6.2 i2c_smbus_i2c_block_read_data(...) #else regular read... #endif but of course that doesn't work because I2C_VERSION is a string. Do we need something better, like three integers MAJOR, MINOR, whatever like the kernel has? Or can I do it somehow with strings? #ifdef I2C_VERSION #if I2C_VERSION[0] * 100 + I2C_VERSION[2] * 10 + I2C_VERSION[4] > 262 ... #endif #endif
