- From: Michele <mika1977_at_virgilio.it>
- Date: Fri, 31 Jan 2003 14:39:26 +0100
Thank you dave..., unknown reasons made my modules.conf file to be different from the example in INSTALL, that I have under my eyes...more attention next time, I promise! Bye. Mike. On Friday 31 Jan 2003 12:04 am, you wrote: > On Wed, Jan 29, 2003 at 11:15:09AM +0100, Michele wrote: > > Hi, trying to tune up my Comedi-Rtai system, I still have a problem: > > kernel says to me "Can't locate module char-major-98-0". Is this a > > problem? > > It means that you haven't made the modifications to /etc/modules.conf > that are described in INSTALL. > > > Before including my DAQ board functionalities in a new Comedi style > > driver, I've tried to call Comedi commands (such as comedi_data_write) to > > see what passes from user to kernel space, i.e. from an executable to the > > driver. What I see is nothing! > > Suppose a call such as > > > > data = 0xaa; /* to have a significant pattern in dio channels: > > 010101...*/ comedi_data_write(it,subdev,chan,range,aref,data); > > 0xaa is greater than maxdata for a digital channel (1), so the result > is undefined. > > You probably want comedi_dio_bitfield(). > > > > dave... -- PhD, Politecnico di Torino Dipartimento di Automatica ed Informatica
Received on 2003-01-31Z13:39:26