New cpia-0.2.3.tgz is out

Jarl Totland jtotland@eunet.no
Tue, 12 Oct 1999 08:04:21 +0200


New revision of the CPiA parport driver is out: cpia-0.2.3.tgz.
Find it at http://home.eunet.no/~jtotland/vision/cpia-0.2.3.tgz
Contains new work from Peter. Thanks for the good work, Peter.


> Date: Mon, 11 Oct 1999 22:30:33 +0200 (CEST)
> From: Peter Pregler <Peter.Pregler@risc.uni-linz.ac.at>
> To: Jarl Totland <Jarl.Totland@bdc.no>
> Subject: New version of cpia-driver
> 
> Hi,
> 
> I have put together a new release of the driver. I named it 0.2.3 but maybe 0.3
> is better. It is quite some change. I send you the whole stuff. The size is not
> that big anyway. The major changes are:
> 
> - compile time option _USE_DMA_ and README.DMA
> - capture is now done in DMA and FIFO-mode to a internal scratch buffer and
>   after that stuff is moved to user-space with copy_to_user, strictly speaking
>   this is not necessary but is much safer for the user, I regard the performance
>  loss as negligibble compared to the other problems with the driver right now
> - the internal scratch_buffer is alloced via functions stolen from the
>   usb-camera kernel tree (new files buffer.[ch])
> - I have disabled all interrupts except the ones used by DMA since it does not
>   work anyway (interrupts signalling are new picture are lost). The
>   interrupt-handler code is still there   but not usable anymore. This really
>   needs a major critical review.
> - the main.cc client now does measure thruput, I hope my computations are
>   correct ;)
> - additional DBG() macro in debug.h and added _DEBUG_ compile time option
> - changed most of the LOG()-lines code to DBG(), the driver should be silent
>   now in normal operation
> - a typo on procs.c
>
> One correction for the web-page: the document about the SMC-chip on the net was
> found by me. Mr. Bruce did point me to the document. But he had the document
> only on paper. It took me half an hour to find the home-page of that silly
> company. You won't believe how many SMC references serach engines find. :)
> 
> Greetings, Peter
> 
> -------------------------------
> Even the thought that a ship was waiting to take him back to Earth
> did not wipe out the sense of loss he felt at that moment.
> -------------------------------

Vyrdsamt,
-Jarl
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