linux-kernel - [PATCH 06/32] staging: comedi: das08.h: make self-reliant

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Message-Id: <1433525435-12986-7-git-send-email-abbotti@mev.co.uk>
Date:	Fri,  5 Jun 2015 18:30:09 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	<driverdev-devel@...uxdriverproject.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 06/32] staging: comedi: das08.h: make self-reliant

The Comedi "das08.h" header file is included by drivers for the
ComputerBoards/MeasurementComputing and Keithley Metrabyte boards in the
DAS08 series.  It does not compile cleanly when it is the first header
included by the ".c" file.  It uses `struct comedi_device *` in the
parameter list of a function prototype, so just declare `struct
comedi_device` as an incomplete type.  It also uses `bool`, so include
<linux/types.h> to declare it.

Signed-off-by: Ian Abbott <abbotti@....co.uk>
---
 drivers/staging/comedi/drivers/das08.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h
index 8b1c1a9..d27044c 100644
--- a/drivers/staging/comedi/drivers/das08.h
+++ b/drivers/staging/comedi/drivers/das08.h
@@ -19,6 +19,10 @@
 #ifndef _DAS08_H
 #define _DAS08_H
 
+#include <linux/types.h>
+
+struct comedi_device;
+
 /* different ways ai data is encoded in first two registers */
 enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
 /* types of ai range table used by different boards */
-- 
2.1.4

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