On Tue, 07 Jul 2009 11:54:03 +0000, Jonathan Cameron wrote: > Jean Delvare wrote: > > Note: this could be done from userspace too if needed. The i2c-dev > > interface supports raw reads and writes. > > > Good point, I'd missed that functionality (did seem a little odd > that I couldn't find it!) > > Method's much the same, but involves using the relevant ioctl > (I2C_RDWR), in conjunction iwth an appropriately filled > i2c_rdwr_ioctl_data structure. > > The i2c_smbus_access function in i2c-dev.h (lm-sensors version) > is similar enough to show how to do it. Actually: i2c-tools version of i2c-dev.h As some point in the future I'll try to get it generated from the kernel's one so that it gets integrated into the standard kernel-headers package. But this involves moving some of the helper functions to a new library and I could never find the time to set this up. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
