Start exploring a ctypes structure setup for the device structure.

2 files changed, 61 insertions, 0 deletions

diff --git a/python/evemu/data.py b/python/evemu/data.py
new file mode 100644
index 0000000..3b79340
--- /dev/null
+++ b/python/evemu/data.py
@@ -0,0 +1,61 @@
+import ctypes
+
+from evemu import const
+
+
+ABS_CNT = const.ABS_MAX + 1
+
+
+class InputIdStruct(ctypes.Structure):
+    """
+    Data structure based on input_id in linux/uinput.h.
+    """
+    _fields_ = [
+        ("bustype", ctypes.c_uint),
+        ("vendor", ctypes.c_uint),
+        ("product", ctypes.c_uint),
+        ("version", ctypes.c_uint),
+        ]
+
+
+class InputAbsInfoStruct(ctypes.Structure):
+    """
+    Data structure based on input_absinfo in XXX.
+    """
+    _fields_ = [
+        ("value", ctypes.c_ulong),
+        ("minimum", ctypes.c_ulong),
+        ("maximum", ctypes.c_ulong),
+        ("fuzz", ctypes.c_ulong),
+        ("flat", ctypes.c_ulong),
+        ("resolution", ctypes.c_ulong),
+        ]
+
+
+class EvEmuDeviceStruct(ctypes.Structure):
+    """
+    Data structure based on evemu_device in evemu-impl.h.
+    """
+    _fields_ = [
+        ("version", ctypes.c_uint),
+        ("name", ctypes.c_byte * const.UINPUT_MAX_NAME_SIZE),
+        ("id", InputIdStruct),
+        ("prop", ctypes.c_ubyte * const.EVPLAY_NBYTES),
+        ("mask", ctypes.c_ubyte),
+        ("pbytes", ctypes.c_int),
+        ("mbytes", ctypes.c_int * const.EV_CNT),
+        ("abs", InputAbsInfoStruct * ABS_CONT),
+        ]
+"""
+struct evemu_device {
+    unsigned int version;                       //
+    char name[UINPUT_MAX_NAME_SIZE];            // string, max size
+    struct input_id id;                         // struct input_id from linux/uinput.h
+    unsigned char prop[EVPLAY_NBYTES];          //
+    unsigned char mask[EV_CNT][EVPLAY_NBYTES];  // doubly indexed array...
+    first index is what type, second field is a bitmask (
+    int pbytes                                  //
+    int mbytes[EV_CNT];                         // array of integers
+    struct input_absinfo abs[ABS_CNT];          // array structures
+};
+"""
diff --git a/python/evemu/tests/test_data.py b/python/evemu/tests/test_data.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/python/evemu/tests/test_data.py