On Mon, Mar 07, 2011 at 04:44:43PM -0500, Greg Schnorr wrote: > Looks good, tested and works on one such VOUT_MODE poor design... > > On 3/1/11 9:32 PM, "Guenter Roeck" <guenter.roeck@xxxxxxxxxxxx> wrote: > > > Some PMBus chips do not support the VOUT_MODE register. To make matters worse, > > such chips may not return an error when reading the register either, but > > instead > > return 0xff. > > > > Check if the register exists using pmbus_check_byte_register() before reading > > its value. In addition, validate the returned value and ignore it if it is > > 0xff > > (which is invalid). > > > > Reported-by: Greg Schnorr <gschnorr@xxxxxxxxx> > > Signed-off-by: Guenter Roeck <guenter.roeck@xxxxxxxxxxxx> > Acked-by: Greg Schnorr <gschnorr@xxxxxxxxx> > Thanks! Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
