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authorZhang Jiejing <jiejing.zhang@freescale.com>2011-05-12 01:32:01 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-05-12 19:28:58 +0400
commit36682b81de32090f5c9fac165e71ab8939aab8c0 (patch)
tree117c09e71f3482fc3b483f4ee7345437df28e1f8 /include/linux/i2c
parent7cbbb758d3c93b24b45b169af55440d2e7d5b7f6 (diff)
downloadlinux-36682b81de32090f5c9fac165e71ab8939aab8c0.tar.xz
Input: add driver FSL MPR121 capacitive touch sensor
This patch adds basic support for Freescale MPR121 capacitive touch sensor. It's an i2c controller with up to 12 capacitance sensing inputs. Product information (data sheet, application notes) can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121 Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux/i2c')
-rw-r--r--include/linux/i2c/mpr121_touchkey.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/i2c/mpr121_touchkey.h b/include/linux/i2c/mpr121_touchkey.h
new file mode 100644
index 000000000000..f0bcc38bbb97
--- /dev/null
+++ b/include/linux/i2c/mpr121_touchkey.h
@@ -0,0 +1,20 @@
+/* Header file for Freescale MPR121 Capacitive Touch Sensor */
+
+#ifndef _MPR121_TOUCHKEY_H
+#define _MPR121_TOUCHKEY_H
+
+/**
+ * struct mpr121_platform_data - platform data for mpr121 sensor
+ * @keymap: pointer to array of KEY_* values representing keymap
+ * @keymap_size: size of the keymap
+ * @wakeup: configure the button as a wake-up source
+ * @vdd_uv: VDD voltage in uV
+ */
+struct mpr121_platform_data {
+ const unsigned short *keymap;
+ unsigned int keymap_size;
+ bool wakeup;
+ int vdd_uv;
+};
+
+#endif /* _MPR121_TOUCHKEY_H */