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From: Michael Mauch <michael.mauch@gmx.de>
To: linux-kernel@vger.kernel.org
Subject: Re: wake up from a serial port
Date: Wed, 12 Sep 2007 23:06:39 +0200	[thread overview]
Message-ID: <20070912210639.GA10172@elmicha> (raw)
In-Reply-To: <Pine.LNX.4.60.0709122019100.5909@poirot.grange>

Guennadi Liakhovetski wrote:

> Enable wakeup from serial ports, make it run-time configurable over sysfs, 
> e.g.,
> 
> echo enabled > /sys/devices/platform/serial8250.0/tty/ttyS0/power/wakeup

Interesting, but how does that work from a user's/hardware perspective?

Do I have to pull DSR/RI to +12V? Can I use one of the other pins to get
these +12V (i.e. a switch and a resistor to shorten these pins is
enough)?

And probably in the BIOS I have to enable "wake on modem ring" (or
something similar)?

Regards...
		Michael

  reply	other threads:[~2007-09-12 21:08 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200709100831.l8A8VUH6015446@imap1.linux-foundation.org>
     [not found] ` <20070910132703.2dd92485@the-village.bc.nu>
     [not found]   ` <Pine.LNX.4.60.0709102251250.5200@poirot.grange>
     [not found]     ` <20070911081220.GA20847@flint.arm.linux.org.uk>
     [not found]       ` <Pine.LNX.4.60.0709111217470.19259@poirot.grange>
     [not found]         ` <20070911121057.34b9e066@the-village.bc.nu>
2007-09-12 18:50           ` [PATCH] wake up from a serial port Guennadi Liakhovetski
2007-09-12 21:06             ` Michael Mauch [this message]
2007-09-13 20:29               ` Guennadi Liakhovetski
2007-09-12 22:36             ` [PATCH] " Andrew Morton
2007-09-13 23:21               ` Greg KH
2007-09-14  8:34               ` Natsemi UART owner test request (was Re: [PATCH] wake up from a serial port) Guennadi Liakhovetski

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