Re: Current saa7134 driver breaks KNC One Tv-Station DVR (card=24)

[Johannes Stezenbach <js@linuxtv.org>]

Bernhard Rosenkraenzer wrote:
> On Tuesday 28 December 2004 18:21, Bernhard Rosenkraenzer wrote:
> > Trying to modprobe saa7134 with this card results in a hanging modprobe
> > process.
> 
> Some more debug info (with 2.6.10-ac1):
> 
> saa7130/34: v4l2 driver version 0.2.12 loaded
> ACPI: PCI interrupt 0000:00:06.0[A] -> GSI 17 (level, low) -> IRQ 177
> saa7134[0]: found at 0000:00:06.0, rev: 1, irq: 177, latency: 64, mmio: 0xdfff9c00
> saa7134[0]: subsystem: 1894:a006, board: KNC One TV-Station DVR [card=24,autodetected]
...
> saa7134: Loading i2c helpers<7>saa7134[0]: i2c xfer: < c0 >
> tuner: chip found at addr 0xc0 i2c-bus saa7134[0]
> tuner: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3)) by saa7134[0]
...
> tda9885/6/7: chip found @ 0x86
...
> saa7134[0]/irq: looping -- clearing PE (parity error!) enable bit
> saa7134[0]/irq[0,-227141]: r=0x20 s=0x00 PE
> [modprobe hangs]
> 
> Looks like it's hanging at request_module("saa7134-empress");

I've reported this before:
http://lkml.org/lkml/2004/11/17/275

The patch that Rusty posted doesn't seem to have it made into
module-init-tools-3.1. Bummer :-(

The Bug in saa7134-core.c doesn't seem to have been addressed yet, so
I suggest the following patch as a temporary measure:

--- linux-2.6.10/drivers/media/video/saa7134/saa7134-core.c.orig	2004-12-25 19:22:55.000000000 +0100
+++ linux-2.6.10/drivers/media/video/saa7134/saa7134-core.c	2004-12-25 19:23:31.000000000 +0100
@@ -940,12 +940,12 @@ static int __devinit saa7134_initdev(str
 		request_module("tuner");
 	if (dev->tda9887_conf)
 		request_module("tda9887");
-  	if (card_is_empress(dev)) {
-		request_module("saa7134-empress");
+	if (card_is_empress(dev)) {
+//		request_module("saa7134-empress");
 		request_module("saa6752hs");
 	}
-  	if (card_is_dvb(dev))
-		request_module("saa7134-dvb");
+//	if (card_is_dvb(dev))
+//		request_module("saa7134-dvb");
 
 	v4l2_prio_init(&dev->prio);
 

Johannes