On 07/04/2014 08:22 AM, Leandro de Marco wrote:
Hi. I need to configure a BMR464 vout parameter. For what I've read this is not supported and won't be supported as a sysfs interface entry, as this is intended for monitoring purposes only. I found this message, from 1 year ago, that received no response: http://lists.lm-sensors.org/pipermail/lm-sensors/2013-July/039441.html Is the ioctl a better approach to set the output? Can't we set this via sys-fs interface and allow only a privileged user to change it? I would like to have some direction here about what is the best way to implement this. Thanks!
From my original reply: "Wrong approach, unfortunately. The regulator subsystem should be used to control voltages and power supplies. See Documentation/power/regulator/ for details. The driver should register itself as power regulator. Since it is a PMBus device, any implementation should be generic and not just support a single chip. So far no one asked for it, so I did not bother to implement it. Basic idea is quite straightforward, but this is one area where PMBus devices have lots of subtle differences, so it would probably need a generic interface/API which is triggered by device specific flags and/or callbacks (ie only chips implementing the callbacks and/or flags would be registered as regulators)." Alternative would be to set the value you need / want with the i2cset command from user space. This may be an easy way to proceed if you plan to set different values only for testing. Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
