Re: [alsa-devel] [PATCH 13/13] libhinawa: add sample scripts

25.01.2015 16:34, Takashi Sakamoto wrote:

+from array import array

+# helper function +def get_array():

• # The width with 'L' parameter is depending on environment.
• arr = array('L')
• if arr.itemsize is not 4:

•    arr = array('I')
  

• return arr

If you insist on using arrays, then please add an assertion that you have actually got an array with itemsize 4 at the end. But, if I were you, I'd go with the "ctypes" module instead, if it works. Here is how you get a fixed-size (in the example, 10 elements) array with signed 4-byte elements:

from ctypes import * TenInts = c_int32 * 10 ii = TenInts()

The result supports buffer protocol.