added log message on overrun

diff --git a/comedi/drivers/comedi_fc.c b/comedi/drivers/comedi_fc.c
index 672dc4649655e6ceb82b6777c37584393fb0b483..56178119c7805259cfad9c4535603ee01ec34ad0 100644 (file)
--- a/comedi/drivers/comedi_fc.c
+++ b/comedi/drivers/comedi_fc.c
@@ -59,6 +59,7 @@ unsigned int cfc_write_array_to_buffer( comedi_subdevice *subd, void *data,
        retval = comedi_buf_write_alloc( async, num_bytes );
        if( retval != num_bytes )
        {
+               rt_printk( "comedi: buffer overrun\n" );
                async->events |= COMEDI_CB_OVERFLOW;
                return 0;
        }