py: Add typecode to buffer protocol.

When querying an object that supports the buffer protocol, that object
must now return a typecode (as per binary.[ch]).  This does not have to
be honoured by the caller, but can be useful for determining element
size.

1 files changed, 2 insertions, 1 deletions

diff --git a/py/objarray.c b/py/objarray.c
index bfd048ebb..c6da45728 100644
--- a/py/objarray.c
+++ b/py/objarray.c
@@ -151,10 +151,11 @@ STATIC mp_obj_t array_subscr(mp_obj_t self_in, mp_obj_t index_in, mp_obj_t value
     }
 }
 
-STATIC machine_int_t array_get_buffer(mp_obj_t o_in, buffer_info_t *bufinfo, int flags) {
+STATIC machine_int_t array_get_buffer(mp_obj_t o_in, mp_buffer_info_t *bufinfo, int flags) {
     mp_obj_array_t *o = o_in;
     bufinfo->buf = o->items;
     bufinfo->len = o->len * mp_binary_get_size(o->typecode);
+    bufinfo->typecode = o->typecode;
     return 0;
 }