On Sat, Mar 12, 2022 at 09:04:31PM +0100, Andrew Lunn wrote: > Do these get passed to the kernel so the hardware can act on them, or > are they used purely in userspace by ptp4l? user space only. > If they has passed to the kernel, could we provide a getter as well as > a setter, so the defaults hard coded in the driver can be read back? Any hard coded defaults in the kernel are a nuisance. I mean, do you want user space to say, "okay, so I know the correct value is X. But the drivers may offer random values according to kernel version. So, I'll read out the driver value Y, and then apply X-Y." Insanity. (not to mention that this fails for older kernels without the proposed interface) Thanks, Richard
