linux-leds.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ben Whitten <ben.whitten@gmail.com>
To: rpurdie@rpsys.net, pavel@ucw.cz, jacek.anaszewski@gmail.com
Cc: linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, Ben Whitten <ben.whitten@gmail.com>
Subject: [PATCH/RFC v2] leds: trigger: Introduce a NETDEV trigger
Date: Tue,  5 Dec 2017 11:19:10 +0000	[thread overview]
Message-ID: <1512472751-10928-1-git-send-email-ben.whitten@lairdtech.com> (raw)

From: Ben Whitten <ben.whitten@gmail.com>

The patch was converted to led_blink_oneshot, in doing so we find that the
behaviour has changed. As I dont want to break 'userspace' led behaviour this
patch shouldn't be merged as is. Open to suggestions.

Given an interval of 50ms and heavy throughput, the previous implementation
produced a blink with 100ms period and 50% dutycycle. The led_blink_oneshot
version produces a blink with 140ms period and 57% dutycycle.
I assume a fudge factor on the oneshot delay to bring the period back to 100ms
would be device specific so not suitable.

Kind regards,
Ben Whitten (1):
  leds: trigger: Introduce a NETDEV trigger

 .../ABI/testing/sysfs-class-led-trigger-netdev     |  45 ++
 drivers/leds/trigger/Kconfig                       |   7 +
 drivers/leds/trigger/Makefile                      |   1 +
 drivers/leds/trigger/ledtrig-netdev.c              | 507 +++++++++++++++++++++
 4 files changed, 560 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-led-trigger-netdev
 create mode 100644 drivers/leds/trigger/ledtrig-netdev.c

-- 
2.7.4

             reply	other threads:[~2017-12-05 11:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-05 11:19 Ben Whitten [this message]
2017-12-05 11:19 ` [PATCH/RFC v2] leds: trigger: Introduce a NETDEV trigger Ben Whitten
2017-12-05 20:38 ` Jacek Anaszewski
2017-12-06 20:07   ` Ben Whitten
2017-12-07 11:35     ` Ben Whitten

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1512472751-10928-1-git-send-email-ben.whitten@lairdtech.com \
    --to=ben.whitten@gmail.com \
    --cc=jacek.anaszewski@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-leds@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=pavel@ucw.cz \
    --cc=rpurdie@rpsys.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).