Re: No audio from WinTV-PVR-pci card] -> Patch for bttv-0.7.57/tools/detect

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Neville H Chandler wrote:
> 
> Gunther,
> 
> I patched bttv-0.7.57/tools/eeprom.c with the patch you sent.   Here is
> the  output of  'detect'
> and 'eeprom -x'.
> ------------- output of "./detect"
> 0xa0: eeprom (Hauppauge boards)

Oh, detect doesn't show MSP here neither:
  0x30: ???
  0xa0: eeprom (Hauppauge boards)

Please apply the patch below, as new i2c code hogs addresses.
Now I have:
0x30: ???             <--- this is infrared, afaik
0x80: errno=16 (Device or resource busy) msp34xx/tea6300 sound processor
0xa0: eeprom (Hauppauge boards)
0xc2: errno=16 (Device or resource busy) tuner



> ------------- output of "./eeprom -x"
...
> Audio: MSP3435

The eeprom output is fine, MSP3435 is documented to
have 3 possible i2c addresses : 0x80, 0x84, 0x88.
Can you hack bttv to probe the others, too? (Beware of address shifting
in i2c layer !)

Please re-exercise after warm-boot from windows (after having used WinTV)
to linux (to make sure if we miss any "new" hw initialization).

Regards, Gunther 

P.S. Gerd, please apply this patch for your bttv-0.7.58/tools, if you like.


--- bttv-0.7.56/tools/detect.c  Fri Oct 20 20:06:03 2000
+++ bttv-0.7.57/tools/detect.c  Mon Feb 26 20:38:36 2001
@@ -57,10 +57,13 @@
        exit(1);
     }
     for (i=0; i < 256; i += 2){
-       ioctl(f,I2C_SLAVE,i>>1);
-       fprintf(stderr,"0x%x\r",i);
-       if (-1 != read(f,b,0)) {
+       int r,er;
+       r=ioctl(f,I2C_SLAVE,i>>1);
+       er=errno;
+       fprintf(stderr," 0x%x\r",i);
+       if ( (-1 != read(f,b,0)) || r) {
            printf("0x%x: ",i);
+           if (r) printf("errno=%d (%s) ", er, strerror(er));
            for (j = 0; known[j].name != NULL; j++) {
                if (known[j].addr == i) {
                    printf("%s\n",known[j].name);





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