From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: Content-Type: text/plain; charset=us-ascii MIME-Version: 1.0 In-Reply-To: Date: Thu, 13 May 1999 05:35:36 +0100 (BST) From: Gary Thomas To: Jeff Rugen Subject: RE: Motorola Powerstack Parallel Port Cc: linuxppc-dev Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On 13-May-99 Jeff Rugen wrote: > > Ok, according to the book that came with my Motorola PowerStack, I have a > parallel port that is compatible with IEEE standard 1284, including the > Extended Capability Port (ECP) and Enhanced Parallel Port (EPP). However, > the driver (parport_pc) doesn't recognize it as ECP and EPP, and says its > only SPP. I haven't played around the parallel port much, so I figured I'd > ask first, to see if anyone else had looked into this before. Does the > kernel need to do some sort of initialization before the parallel port is > recognized as such? (I do have a B&W quickcam plugged into the port now, > but I don't think that should affect the detection). > It might - those devices do funky things to the port even though they are supposed to be invisible unless being accessed. > I have one of the old 100MHz 604 machines. I'm trying to get the quickcam > drivers working with the 2.2.x/2.3.x kernel (I had one of the drivers > working with the 2.0.x kernel, but I don't know if it was in EPP or SPP > mode). > > Any help, pointers, or advice on this topic would be much appreciated. > If you know what specific chip is used to implement the parallel > port, I can look around for a data book on it as well. Thanks for any help. > The parallel port, along with most of the other devices in the system, are implemented in the PCI-bridge chip (82473 IIRC). ------------------------------------------------------------------------ Gary Thomas | email: gdt@linuxppc.org | "Fine wine is a necessity of ... opinions expressed here are mine | life for me" and no one else would claim them! | | Thomas Jefferson ------------------------------------------------------------------------ [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. Please check http://lists.linuxppc.org/ ]] [[ and http://www.linuxppc.org/ for useful information before posting. ]]