added a working() method.

diff --git a/src/sl.h b/src/sl.h
index ab141bd74af2cd25dcedb0710d86519077b26831..dd026b7f074c3e57db6d8efa588827c72410878b 100644 (file)
--- a/src/sl.h
+++ b/src/sl.h
@@ -112,6 +112,7 @@ public:
 
   void play ( void *buffer, size_t length ) { write ( buffer, length ) ; } 
 
+  int working () { return !error ; }
   int not_working () { return error ; }
 
   int getBps   () { return bps    ; }