set sdf readable flag for digital output

diff --git a/comedi/drivers/das16.c b/comedi/drivers/das16.c
index 4f5d0a104d5bdf6e387baf25228d560dfe3cf44f..ab833cddbc0e1b5b67eb13c958fa3bc0c0e9fb3c 100644 (file)
--- a/comedi/drivers/das16.c
+++ b/comedi/drivers/das16.c
@@ -1322,12 +1322,13 @@ static int das16_attach(comedi_device *dev, comedi_devconfig *it)
                s->subdev_flags = SDF_READABLE;
                if(devpriv->ai_singleended){
                        s->n_chan = 16;
+                       s->len_chanlist = 16;
                        s->subdev_flags |= SDF_GROUND;
                }else{
                        s->n_chan = 8;
+                       s->len_chanlist = 8;
                        s->subdev_flags |= SDF_DIFF;
                }
-               s->len_chanlist = 16;
                s->maxdata = (1 << thisboard->ai_nbits) - 1;
                if(devpriv->ai_unipolar){
                        s->range_table = das16_ai_uni_lranges[thisboard->ai_pg];
@@ -1372,7 +1373,7 @@ static int das16_attach(comedi_device *dev, comedi_devconfig *it)
        /* do */
        if(thisboard->do_){
                s->type = COMEDI_SUBD_DO;
-               s->subdev_flags = SDF_WRITEABLE;
+               s->subdev_flags = SDF_WRITEABLE | SDF_READABLE;
                s->n_chan = 4;
                s->maxdata = 1;
                s->range_table = &range_digital;