Add missing c_uint type for several python/c bindings

Errors are being thrown from the python bindings to IIO. Function prototypes for d_get_attr, d_get_debug_attr, d_get_buffer_attr, c_get_attr are missing an additional argument, that is currently not being passed and causes strange OS errors, since the expected parameter is not passed.

This commit adds the missing c_uint parameter to these python/C bindings and fixes the issue for these specific functions.

Signed-off-by: Misko <misko@cs.toronto.edu>

bindings/python/iio.py

@@ -375,7 +375,7 @@ class ChannelType(Enum):
 
 _d_get_attr = _lib.iio_device_get_attr
 _d_get_attr.restype = c_char_p
-_d_get_attr.argtypes = (_DevicePtr,)
+_d_get_attr.argtypes = (_DevicePtr, c_uint)
 _d_get_attr.errcheck = _check_null
 
 _d_read_attr = _lib.iio_device_attr_read
@@ -394,7 +394,7 @@ class ChannelType(Enum):
 
 _d_get_debug_attr = _lib.iio_device_get_debug_attr
 _d_get_debug_attr.restype = c_char_p
-_d_get_debug_attr.argtypes = (_DevicePtr,)
+_d_get_debug_attr.argtypes = (_DevicePtr, c_uint)
 _d_get_debug_attr.errcheck = _check_null
 
 _d_read_debug_attr = _lib.iio_device_debug_attr_read
@@ -413,7 +413,7 @@ class ChannelType(Enum):
 
 _d_get_buffer_attr = _lib.iio_device_get_buffer_attr
 _d_get_buffer_attr.restype = c_char_p
-_d_get_buffer_attr.argtypes = (_DevicePtr,)
+_d_get_buffer_attr.argtypes = (_DevicePtr, c_uint)
 _d_get_buffer_attr.errcheck = _check_null
 
 _d_read_buffer_attr = _lib.iio_device_buffer_attr_read
@@ -506,7 +506,7 @@ class ChannelType(Enum):
 
 _c_get_attr = _lib.iio_channel_get_attr
 _c_get_attr.restype = c_char_p
-_c_get_attr.argtypes = (_ChannelPtr,)
+_c_get_attr.argtypes = (_ChannelPtr, c_uint)
 _c_get_attr.errcheck = _check_null
 
 _c_get_filename = _lib.iio_channel_attr_get_filename