fixed detection of analog input or output subdevice

diff --git a/comedi/drivers/comedi_rt_timer.c b/comedi/drivers/comedi_rt_timer.c
index ea80de0821a06f4e731e9e9210c7ffc3f9da88dc..db154b7710733d6945bb6a182d2736a7302af550 100644 (file)
--- a/comedi/drivers/comedi_rt_timer.c
+++ b/comedi/drivers/comedi_rt_timer.c
@@ -528,10 +528,10 @@ static int timer_attach(comedi_device *dev,comedi_devconfig *it)
 
        // input or output subdevice
        s=dev->subdevices+0;
-       if(emul_s->subdev_flags & SDF_READABLE)
+       if(emul_s->type == COMEDI_SUBD_AI)
        {
                s->type=emul_s->type;
-               s->subdev_flags = SDF_READABLE;
+               s->subdev_flags = emul_s->subdev_flags;
                s->n_chan=emul_s->n_chan;
                s->len_chanlist=1024;
                s->do_cmd=timer_cmd;
@@ -543,10 +543,10 @@ static int timer_attach(comedi_device *dev,comedi_devconfig *it)
                s->insn_read=timer_insn;
                dev->read_subdev = s;
                devpriv->io_function = timer_data_read;
-       }else if(emul_s->subdev_flags & SDF_WRITEABLE)
+       }else if(emul_s->type == COMEDI_SUBD_AO)
        {
                s->type=emul_s->type;
-               s->subdev_flags = SDF_WRITEABLE;
+               s->subdev_flags = emul_s->subdev_flags;
                s->n_chan=emul_s->n_chan;
                s->len_chanlist=1024;
                s->do_cmd=timer_cmd;
@@ -560,7 +560,7 @@ static int timer_attach(comedi_device *dev,comedi_devconfig *it)
                dev->write_subdev = s;
                devpriv->io_function = timer_data_write;
        }else {
-               comedi_error(dev, "subdevice is not readable or writeable!");
+               comedi_error(dev, "failed to determine subdevice type!");
                return -EINVAL;
        }