On Thursday 13 December 2012 11:31 PM, Stephen Warren wrote:
On 12/13/2012 09:27 AM, Mike Turquette wrote:
On Wed, Dec 12, 2012 at 7:49 PM, Prashant Gaikwad <pgaik...@nvidia.com> wrote:
Adds debug file "clock_tree" in /sys/kernel/debug/clk dir.
It helps to view all the clock registered in tree format.
Prashant,
Thanks for submitting this. We've been talking about having a single
file for representing the tree for some time.
Regarding the output format had you considered using a well known
format which can be parsed using well known parsing libs? This avoids
needing a custom parser just for this one file. JSON springs to mind
as something lightweight and well-understood.
One advantage of the format below is that it's very easily
human-readable, and it's not too hard to parse (although I guess you'd
have to parse the indent level to get parent/child relation, which would
suck a bit). Is there room to provide both? Otherwise, I guess the
kernel could include a script to convert from JSON/whatever into the
format below.
For example:
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
i2s0_sync 0 0 24000000
spdif_in_sync 0 0 24000000
spdif_mux 0 0 24000000
spdif 0 0 24000000
spdif_doubler 0 0 48000000
spdif_div 0 0 48000000
spdif_2x 0 0 48000000
Even I think that output must be easily human-readable. How about adding
sysfs to switch between human-readable and machine-readable format?
I will try come up with a implementation.
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