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From: Kumar Gala <galak@kernel.crashing.org>
To: linux kernel mailing list <linux-kernel@vger.kernel.org>
Cc: David Brownell <david-b@pacbell.net>,
	spi-devel-general@lists.sourceforge.net
Subject: SPI bus driver synchronous support
Date: Wed, 29 Mar 2006 13:49:48 -0600	[thread overview]
Message-ID: <7C75FBEB-F962-4860-A797-AC6B454D6E6E@kernel.crashing.org> (raw)

I was wondering if there was any thought to providing a mechanism for  
SPI bus drivers to implement a direct synchronous interface so we  
don't have to use wait_for_completion.

The case I have is I need to talk to a microcontroller connected over  
SPI.  I'd like to be able to issue a command to the microcontroller  
in a MachineCheck handler before the system reboots.  I need a truly  
synchronous interface opposed to one fronting the async interface.

Also, who is the maintainer for the SPI subsystem?

thanks

- kumar



             reply	other threads:[~2006-03-29 19:49 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-29 19:49 Kumar Gala [this message]
2006-03-30  1:34 ` [spi-devel-general] " Stephen Street
2006-03-30 17:53 ` David Brownell
2006-03-31  5:52   ` Kumar Gala

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