Messages in this thread |  | | Date | Sat, 12 Mar 2022 18:46:46 -0800 | From | Richard Cochran <> | Subject | Re: [PATCH net-next 2/3] dt-bindings: net: micrel: Configure latency values and timestamping check for LAN8814 phy |
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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
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