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@xxxxxxxxx>
---
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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