[linux-dvb] Possible patch for CAM/CI issues

irk irk at ieee.org
Mon Nov 7 18:41:50 CET 2005

I can add this symptom:

I have two CAM's, one is called Matrix Revolutions, another is called X-CAM.
These are CAM's which can be used with multiple encryption systems. I tested
them with SECA Mediaguard. What happens is that X-CAM works perfectly but
Matrix has big troubles. Lots of squares appear in the picture and driver 
about CRC errors. Both CAM's work perfectly in quite old set-top box.


----- Original Message ----- 
From: "Andrew de Quincey" <adq_dvb at lidskialf.net>
To: <linux-dvb at linuxtv.org>
Sent: Monday, November 07, 2005 12:26 PM
Subject: [linux-dvb] Possible patch for CAM/CI issues
> Hi, this is a first attempt at fixing the remaining CI driver issues.
> I'm not sure where the problems Macro + Andreas reported are coming from -
> they could either be from the application or from the driver, but I 
> included
> you in the CC in case this patch helps...
> Main features of this patch: slight restructuring in order to remove 
> locking
> completely - simplifies code and also should increase speed since there is 
> no
> locking necessary now. Also decreases the amount of work done in IRQ 
> context.

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