From: Rodolfo Giometti <giometti@enneenne.com>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-kernel@vger.kernel.org
Subject: heartbeat for leds on i2c bus
Date: Mon, 3 Dec 2007 11:35:57 +0100 [thread overview]
Message-ID: <20071203103557.GT10305@enneenne.com> (raw)
Hello,
on my custom board I have some leds mapped on a dedicated chip
connected via i2c bus.
If I try to use the heartbeat trigger I hang the system... I suppose
it is due the fact the led_set_brightness() function is called inside
a kernel timer.
How I can solve this problem? I thought to modify the trigger adding a
kernel thread who manage the led which in turn is controlled by the
kernel timer. It could be the right solution?
Thanks in advance,
Rodolfo
--
GNU/Linux Solutions e-mail: giometti@enneenne.com
Linux Device Driver giometti@gnudd.com
Embedded Systems giometti@linux.it
UNIX programming phone: +39 349 2432127
next reply other threads:[~2007-12-03 10:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-03 10:35 Rodolfo Giometti [this message]
2007-12-03 13:45 ` heartbeat for leds on i2c bus Atsushi Nemoto
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