[linux-dvb] Nebula DigiTV and nxt6000 problems

["Robert Cook" <robert@softek.com.au>]

Title: Message

I had my Nebula DigiTV card working before a reinstall. The only difference is the latest video4linux2 and dvb-kernel modules were used in the reinstall.

 

I am running Mandrake 9.2 with a 2.4.23 kernel. Video4Linux downloaded and installed. dvb-kernel downloaded and installed. Pretty much the same procedure as before.

 

An AVerTV-DVB card was recently added and this is working fine. With or without the AVerTV card the Nebula does not work so it does not appear to be a conflict. The Nebula works ok under windows with the manufacturers supplied software so the card is ok.

 

Given the AVerTV card works would indicate the kernel, video4linux and dvb-kernel are installed ok. This points to the frontend nxt6000 module. It looks like the driver is passing a zero length message to i2c->xfer which is responding with EINVAL. Not sure what i2c->xfer needs to send but a zero length buffer will not work.

 

Following the README.bt8xx instructions the following dmesg output is produced:

 

# modprobe bttv i2c_hw=1 card=0x68

# dmesg

i2c-core.o: i2c core module version 2.8.1 (20031005)
Linux video capture interface: v1.00
bttv: driver version 0.9.12 loaded
bttv: snapshot date 2004-01-14
bttv: using 4 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 02:0b.0, irq: 23, latency: 64, mmio: 0xfbefc000
bttv0: detected: Nebula Electronics DigiTV [card=104], PCI subsystem ID is 0071:0101
bttv0: using: Nebula Electronics DigiTV [card=104,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=00fff7cb [init]
bttv0: using tuner=-1
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok
bttv: Bt8xx card found (1).
bttv1: Bt878 (rev 17) at 02:0a.0, irq: 22, latency: 64, mmio: 0xfbefe000
bttv1: subsystem: 1461:0761 (UNKNOWN)
please mail id, board name and the correct card= insmod option to kraxel@bytesex.org
bttv1: using:  *** UNKNOWN/GENERIC ***  [card=0,autodetected]
bttv1: gpio: en=00000000, out=00000000 in=009c005d [init]
bttv1: using tuner=-1
bttv1: i2c: checking for MSP34xx @ 0x80... not found
bttv1: i2c: checking for TDA9875 @ 0xb0... not found
bttv1: i2c: checking for TDA7432 @ 0x8a... not found
bttv1: registered device video1
bttv1: registered device vbi1

# modprobe dvb-bt8xx

# dmesg

bt878: AUDIO driver version 0.0.0 loaded
bt878: Bt878 AUDIO function found (0).
bt878(0): Bt878 (rev 17) at 02:0b.1, irq: 23, latency: 64, memory: 0xfbefd000
bt878: Bt878 AUDIO function found (1).
bt878(1): Bt878 (rev 17) at 02:0a.1, irq: 22, latency: 64, memory: 0xfbeff000
DVB: registering new adapter (Neb).
DVB: registering new adapter (Ave).

# modprobe nxt6000

# dmesg

nxt6000: unable to detect tuner

 

With the debug flag turned on in nxt6000.c

 

# modprobe nxt6000

# dmesg

nxt6000: init
nxt6000: attach
nxt6000: pll_write error -22
nxt6000: pll_write error -22
nxt6000: pll_write error -22
nxt6000: unable to detect tuner
nxt6000: nxt6000_read error (.addr = 0x18, reg: 0x73, ret: -5)
nxt6000: nxt6000_read error (.addr = 0x24, reg: 0x73, ret: -5)
nxt6000: nxt6000_read error (.addr = 0x28, reg: 0x73, ret: -5)
nxt6000: attach
nxt6000: nxt6000_read error (.addr = 0x14, reg: 0x73, ret: -5)
nxt6000: nxt6000_read error (.addr = 0x18, reg: 0x73, ret: -5)
nxt6000: nxt6000_read error (.addr = 0x24, reg: 0x73, ret: -5)
nxt6000: nxt6000_read error (.addr = 0x28, reg: 0x73, ret: -5)

Many thanks

 

Robert