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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2012-08-30 21:42:57 -0400
committerGuenter Roeck <linux@roeck-us.net>2012-09-23 21:08:33 -0700
commit6c1fe725fd76f4328e22c146d3a36513963a01ea (patch)
tree23c2fabf8c2e38beac375353dde793138366a37c /include/linux/platform_data
parent37f9648b2745fc3830f3715a601f7f94296de838 (diff)
hwmon: add Maxim MAX197 support
The MAX197 is an A/D converter, made by Maxim. This driver currently supports the MAX197, and MAX199. They are both 8-Channel, Multi-Range, 5V, 12-Bit DAS with 8+4 Bus Interface and Fault Protection. The available ranges for the MAX197 are {0,-5V} to 5V, and {0,-10V} to 10V, while they are {0,-2V} to 2V, and {0,-4V} to 4V on the MAX199. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'include/linux/platform_data')
-rw-r--r--include/linux/platform_data/max197.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/platform_data/max197.h b/include/linux/platform_data/max197.h
new file mode 100644
index 00000000000..e2a41dd7690
--- /dev/null
+++ b/include/linux/platform_data/max197.h
@@ -0,0 +1,21 @@
+/*
+ * Maxim MAX197 A/D Converter Driver
+ *
+ * Copyright (c) 2012 Savoir-faire Linux Inc.
+ * Vivien Didelot <vivien.didelot@savoirfairelinux.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * For further information, see the Documentation/hwmon/max197 file.
+ */
+
+/**
+ * struct max197_platform_data - MAX197 connectivity info
+ * @convert: Function used to start a conversion with control byte ctrl.
+ * It must return the raw data, or a negative error code.
+ */
+struct max197_platform_data {
+ int (*convert)(u8 ctrl);
+};