On Mon, May 01, 2017 at 08:45:14AM +0000, Chris Packham wrote: > Hi, > > I'm looking at adding code to configure the enhanced acoustics on the > ADT7475 and compatible devices. > > I'm wondering if I should be adding these as device-tree properties or > as sysfs attributes. And in either case how these properties/attributes > should behave. The main impact of this would be to provide a mechanism > for configuring how fast the pwm output will change. > > The fact that I wrote "configuring" above makes me lean towards sysfs > attributes. Nothing in Documentation/hwmon/sysfs-interface really covers Definitely. This does not describe hardware. > this. dme1737.c has a pwmN_ramp_rate which would seem close to what I > want. Is there any other precedent I should follow? > There is pwmX_step but that does not describe a ramp rate in time. dme1737.c indeed seems to be the closest match. Nothing else I can think of. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-hwmon" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
