On Tue, Dec 07, 2010 at 12:10:10PM +0000, Mark Brown wrote: > On Tue, Dec 07, 2010 at 11:07:05AM +0100, Jean Delvare wrote: > > The I2C specification explicitly describes both SDA and SCL as > > bidirectional lines. An I2C master with a read-only SCL is thus not > > compliant. If a slow slave stretches the clock, errors will happen, > > so the bus can't be considered as reliable. > > > > Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx> > > It'd be good to also flag this via sysfs so that it's more readily > visible to things like diagnostic tools. Could be, I wonder how many other hardware based adapters just don't do this. Quite a few devices i've seen don't use it as they're generally fast enough, or implement some other status polling system. -- Ben Q: What's a light-year? A: One-third less calories than a regular year. -- 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
