From: Segher Boessenkool <segher@kernel•crashing.org>
To: Nico Schottelius <nico-linux-ppc@schottelius•org>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs•org>
Subject: Re: [PATCH] Heartbeat LED for iBook
Date: Fri, 18 Feb 2005 13:11:00 +0100 [thread overview]
Message-ID: <f585c9c6e4bdfbba6dcaafc96b7c0607@kernel.crashing.org> (raw)
In-Reply-To: <20050218111304.GH5801@schottelius.org>
>>> Btw, howto control it via /dev/adb? Can you point me to a document
>>> which explains that?
>>
>> Write a byte 0x06 followed by the PMU packet (all in one write());
>> read back the PMU reply (all in one read()).
>
> What exactly does 0x06 mean?
6 just means "send to PMU". It is a Linux thing, nothing to do
with the PMU itself.
> Flash led? Isn't there some kind of
> "bright-led" "5V,12V,24V" settings available? I mean I want to be able
> to change the brightness.
You can't change brightness on a LED. You can however make it blink,
say, a few hundred times per second, and change the duty-cycle.
> And what is the PMU packet? One Byte, two byte, value 0x2342?
Dunno what the exact command for this is.
> Please point me to a FM about adb.
What is a FM? And it has nothing to do with ADB.
Segher
next prev parent reply other threads:[~2005-02-18 12:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-18 9:42 [PATCH] Heartbeat LED for iBook Joerg Dorchain
2005-01-26 11:35 ` Nico Schottelius
2005-01-26 13:42 ` Benjamin Herrenschmidt
2005-02-08 7:54 ` Nico Schottelius
2005-02-14 13:14 ` Segher Boessenkool
2005-02-18 11:13 ` Nico Schottelius
2005-02-18 12:11 ` Segher Boessenkool [this message]
2005-02-18 12:20 ` Nico Schottelius
2005-02-18 13:00 ` Segher Boessenkool
2005-02-18 17:58 ` Brad Boyer
2005-02-18 18:10 ` Segher Boessenkool
2005-02-19 19:17 ` Brad Boyer
2005-01-27 16:36 ` Joerg Dorchain
2005-02-18 14:57 ` ibook-led (finished) (was: [PATCH] Heartbeat LED for iBook) Nico Schottelius
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=f585c9c6e4bdfbba6dcaafc96b7c0607@kernel.crashing.org \
--to=segher@kernel$(echo .)crashing.org \
--cc=linuxppc-dev@ozlabs$(echo .)org \
--cc=nico-linux-ppc@schottelius$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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