fixes in bulk write and add example of writing INI via TF

gex/gex_bulk.c

@@ -121,7 +121,7 @@ bool GEX_BulkWrite(GexUnit *unit, GexBulk *bulk)
     if (max_size < bulk->len) {
         fprintf(stderr, "Write not possible, not enough space.\n");
         // Inform GEX we're not going to do it
-        GEX_SendEx(unit, MSG_BULK_ABORT, NULL, 0, resp0.session, true);
+        GEX_SendEx(unit, MSG_BULK_ABORT, NULL, 0, resp0.session, true, true);
         return false;
     }
 
@@ -145,7 +145,7 @@ bool GEX_BulkWrite(GexUnit *unit, GexBulk *bulk)
     }
 
     // Conclude the transfer
-    GEX_SendEx(unit, MSG_BULK_END, NULL, 0, resp0.session, true);
+    GEX_SendEx(unit, MSG_BULK_END, NULL, 0, resp0.session, true, true);
 
     return true;
 }

gex/gex_unit.c

@@ -86,12 +86,12 @@ void GEX_Send(GexUnit *unit, uint8_t cmd, const uint8_t *payload, uint32_t len)
 /** Send with no listener, don't wait for response */
 void GEX_SendEx(GexUnit *unit, uint8_t cmd,
                 const uint8_t *payload, uint32_t len,
-                GexSession session, bool is_reply)
+                GexSession session, bool is_reply, bool raw_pld)
 {
     assert(unit != NULL);
     assert(unit->gex != NULL);
 
-    GEX_LL_Query(unit, cmd, payload, len, session, is_reply, NULL, NULL, false);
+    GEX_LL_Query(unit, cmd, payload, len, session, is_reply, NULL, NULL, raw_pld);
 }
 
 /** listener for the synchronous query functionality */

gex/gex_unit.h

@@ -65,6 +65,7 @@ GexMsg GEX_QueryEx(GexUnit *unit, uint8_t cmd,
 
 void GEX_SendEx(GexUnit *unit, uint8_t cmd,
 				const uint8_t *payload, uint32_t len,
-				GexSession session, bool is_reply);
+				GexSession session, bool is_reply,
+				bool raw_pld);
 
 #endif //GEX_CLIENT_GEX_UNIT_H

main.c

@@ -99,7 +99,7 @@ int main(void)
 #endif
 
 #if 1
-    // Read the communist manifesto via bulk transfer
+    // Load settings to a buffer as INI
     uint8_t inifile[10000];
     br = (GexBulk){
             .buffer = inifile,
@@ -111,6 +111,11 @@ int main(void)
     uint32_t actuallyRead = GEX_BulkRead(GEX_SystemUnit(gex), &br);
     fprintf(stderr, "Read %d bytes of INI:\n", actuallyRead);
     fprintf(stderr, "%.*s", actuallyRead, inifile);
+
+    // And send it back...
+    br.len = actuallyRead;
+    br.req_cmd = MSG_INI_WRITE;
+    GEX_BulkWrite(GEX_SystemUnit(gex), &br);
 #endif
 
 #if 0