I have a system consisting of 1 to N NICs each containing a PHC each registered as a ptp device. Each phc is a slave to a different master. I need to get the time of each phc and perform some arithmetic on the values. I want to implement this in kernel space. I thought about writing a device driver for a chardev or a proc file. This driver would perform the required operations in a critical section which can not be interrupted. Is there an API for kernel space access to the phcs ?
Thanks Jannis PS I excuse in advance if this is a topic for the development list
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