Re: [PATCH] pps: Add support for read operations and return a useful value in poll

[Rodolfo Giometti]

On Tue, Mar 31, 2015 at 11:31:22PM +0200, Christian Riesch wrote:
> The PPS_FETCH ioctl in drivers/pps/pps.c blocks until a new PPS event
> occurs, then returns the time stamp data. While this is fine for
> lots of applications, sometimes it would be nice if the poll system
> call and a subsequent read could be used to obtain the pps data.

Nak. The read syscall can't be forced to return fix amount of
data.

Use a dedicated ioctl instead.

Ciao,

Rodolfo

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