--- stmbl.c.oryg 2012-06-13 15:01:49.000000000 +0200
+++ stmbl.c 2012-06-13 15:12:51.000000000 +0200
+@@ -118,7 +118,7 @@
+ printf(" chk = %x\n", checksum);
+ #endif
+ // send stream
+- write(stmbl.device, &prefix_byte, 1);
++ rval = write(stmbl.device, &prefix_byte, 1);
+ rval = write(stmbl.device, buf, size);
+ return rval + write(stmbl.device, &checksum, 1);
+ }
@@ -127,7 +127,7 @@
int stmblRecv(uint8_t* buf, unsigned int size)
{