In linux/drivers/media/common/tuners/tuner-xc2028.c file, on xc2028_attach, video_dev must be = cfg->video_dev;
and on the current source it's = cfg->i2c_adap->algo_data; which completely breaks the module when loaded.
It was already suggested that this should be changed, but nobody said why this modification was done or why it was kept.
Mauro could you trace when and why this modification was done? or at least give it back to original state?
2008/5/27 B&M <bernardenmartine@xxxxxxxxxx>:
Hello,
I found some mails on this mailing list about guys who managed to put
the Terratec Cinergy HT USB XE to work. So, I tought I'd give it a try,
but it didn't really went as expected.
There seems to be a problem at registration of frontend causing a crash.
Any idea what this could be?
Do you know how I can debug this? I suppose I should deactivate the
automatic detection of my USB and launch the driver load manually with
gdb, but I'm not yet comfortable on how to do this.
I'm running a brand new install of fedora 9 (2.6.25.3-18.fc9.x86_64)
Below (part of) the output of dmesg:
dib0700: loaded with support for 7 different device-types
dvb-usb: found a 'Terratec Cinergy HT USB XE' in cold state, will try to
load a firmware
ahci 0000:00:12.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode
ahci 0000:00:12.0: flags: ncq sntf ilck pm led clo pio slum part
scsi2 : ahci
scsi3 : ahci
scsi4 : ahci
scsi5 : ahci
ata3: SATA max UDMA/133 abar m1024@0xfe8ff800 port 0xfe8ff900 irq 22
ata4: SATA max UDMA/133 abar m1024@0xfe8ff800 port 0xfe8ff980 irq 22
ata5: SATA max UDMA/133 abar m1024@0xfe8ff800 port 0xfe8ffa00 irq 22
ata6: SATA max UDMA/133 abar m1024@0xfe8ff800 port 0xfe8ffa80 irq 22
ata3: SATA link down (SStatus 0 SControl 300)
dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.10.fw'
dib0700: firmware started successfully.
ata4: SATA link down (SStatus 0 SControl 300)
ata5: SATA link down (SStatus 0 SControl 300)
dvb-usb: found a 'Terratec Cinergy HT USB XE' in warm state.
dvb-usb: will pass the complete MPEG2 transport stream to the software
demuxer.
DVB: registering new adapter (Terratec Cinergy HT USB XE)
ata6: SATA link down (SStatus 0 SControl 300)
piix4_smbus 0000:00:14.0: Found 0000:00:14.0 device
ACPI: PCI Interrupt 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 16
ALSA sound/pci/hda/hda_intel.c:1810: chipset global capabilities = 0x4401
ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x1
hda_codec: Unknown model for ALC883, trying auto-probe from BIOS...
ALSA sound/pci/hda/hda_codec.c:2857: autoconfig: line_outs=4
(0x14/0x15/0x16/0x17/0x0)
ALSA sound/pci/hda/hda_codec.c:2861: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2865: hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2866: mono: mono_out=0x0
ALSA sound/pci/hda/hda_codec.c:2874: inputs: mic=0x18, fmic=0x19,
line=0x1a, fline=0x0, cd=0x0, aux=0x0
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone
Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Line-Out Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback
Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback
Switch, skipped
r8169 Gigabit Ethernet driver 2.2LK-NAPI loaded
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 19 (level, low) -> IRQ 19
PCI: Setting latency timer of device 0000:02:00.0 to 64
r8169 0000:02:00.0: no MSI. Back to INTx.
eth0: RTL8168b/8111b at 0xffffc200004fe000, 00:19:db:c0:16:4f, XID
38000000 IRQ 19
DVB: registering frontend 0 (DiBcom 7000PC)...
general protection fault: 0000 [1] SMP
CPU 1
Modules linked in: tuner_xc2028 snd_hda_intel snd_seq_dummy snd_seq_oss
dvb_usb_dib0700(+) dib7000p snd_seq_midi_event dib7000m snd_seq dvb_usb
snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm dvb_core dib3000mc
dibx000_common i2c_piix4 snd_timer snd_page_alloc floppy snd_hwdep
k8temp r8169 snd button hwmon ahci soundcore shpchp dib0070 i2c_core
pcspkr sr_mod sg cdrom dm_snapshot dm_zero dm_mirror dm_mod pata_acpi
ata_generic pata_atiixp libata sd_mod scsi_mod ext3 jbd mbcache uhci_hcd
ohci_hcd ehci_hcd [last unloaded: scsi_wait_scan]
Pid: 660, comm: modprobe Not tainted 2.6.25.3-18.fc9.x86_64 #1
RIP: 0010:[<ffffffff882917f1>] [<ffffffff882917f1>]
:tuner_xc2028:xc2028_attach+0x19d/0x1f0
RSP: 0018:ffff810036da5aa8 EFLAGS: 00010206
RAX: 0020000000a08c00 RBX: ffffffff882936b0 RCX: 0000000000000080
RDX: 00000000ffffffff RSI: ffffffff88291970 RDI: ffff810032cf1270
RBP: ffff810036da5ad8 R08: ffffffff88198869 R09: ffff810036da5ad0
R10: 0000000000000002 R11: ffff810036da56a8 R12: ffffffff88208be0
R13: 0000000000000000 R14: ffff810032cf1000 R15: 0000000000000000
FS: 00007fc93594e6f0(0000) GS:ffff810037802680(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000003bde0a6550 CR3: 00000000331ab000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process modprobe (pid: 660, threadinfo ffff810036da4000, task
ffff810036da2000)
Stack: 0000000000000001 0000000000000000 ffff810036cc8d50 ffff810036cc8618
ffff810036cc8d50 0000000000000001 ffff810036da5af8 ffffffff882008e7
ffff810036cc8618 ffff810036cc8d50 ffff810036da5b18 ffffffff881d4f27
Call Trace:
[<ffffffff882008e7>] :dvb_usb_dib0700:stk7700ph_tuner_attach+0x6b/0x99
[<ffffffff881d4f27>] :dvb_usb:dvb_usb_adapter_frontend_init+0xdc/0xff
[<ffffffff881d4979>] :dvb_usb:dvb_usb_device_init+0x4b4/0x597
[<ffffffff8820065c>] :dvb_usb_dib0700:dib0700_probe+0x44/0x6f
[<ffffffff811c5e98>] usb_probe_interface+0xe5/0x133
[<ffffffff811aba99>] driver_probe_device+0xc0/0x16e
[<ffffffff811abbda>] __driver_attach+0x93/0xd3
[<ffffffff811abb47>] ? __driver_attach+0x0/0xd3
[<ffffffff811ab2b6>] bus_for_each_dev+0x4f/0x89
[<ffffffff811ab8e4>] driver_attach+0x1c/0x1e
[<ffffffff811aab2d>] bus_add_driver+0xb7/0x200
[<ffffffff811abda3>] driver_register+0x5e/0xde
[<ffffffff811c60ec>] usb_register_driver+0x80/0xe4
[<ffffffff8820d037>] :dvb_usb_dib0700:dib0700_module_init+0x37/0x53
[<ffffffff81057747>] sys_init_module+0x193f/0x1a87
[<ffffffff810a4db8>] ? do_sync_read+0xe7/0x12d
[<ffffffff8103e30e>] ? msleep+0x0/0x1e
[<ffffffff810a57fd>] ? vfs_read+0xab/0x154
[<ffffffff8100bedb>] system_call_after_swapgs+0x7b/0x80
Code: 31 c0 e8 16 6f 00 f9 49 8d be 70 01 00 00 48 c7 c6 70 18 29 88 b9
40 00 00 00 f3 a5 83 ca ff 48 8b 43 18 8a 4b 10 48 85 c0 74 06 <8b> 90
b8 02 00 00 48 8b 73 28 31 c0 0f b6 c9 49 c7 c0 08 27 29
RIP [<ffffffff882917f1>] :tuner_xc2028:xc2028_attach+0x19d/0x1f0
RSP <ffff810036da5aa8>
---[ end trace de2b9667e3d5dcad ]---
Thanks for your help !
Bernard
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