aboutsummaryrefslogtreecommitdiff
path: root/include/linux/spi/ads7846.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/spi/ads7846.h')
-rw-r--r--include/linux/spi/ads7846.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
new file mode 100644
index 00000000000..72261e0f2ac
--- /dev/null
+++ b/include/linux/spi/ads7846.h
@@ -0,0 +1,18 @@
+/* linux/spi/ads7846.h */
+
+/* Touchscreen characteristics vary between boards and models. The
+ * platform_data for the device's "struct device" holds this information.
+ *
+ * It's OK if the min/max values are zero.
+ */
+struct ads7846_platform_data {
+ u16 model; /* 7843, 7845, 7846. */
+ u16 vref_delay_usecs; /* 0 for external vref; etc */
+ u16 x_plate_ohms;
+ u16 y_plate_ohms;
+
+ u16 x_min, x_max;
+ u16 y_min, y_max;
+ u16 pressure_min, pressure_max;
+};
+