[linux-dvb] Re: Twinhan Visionplus VisionDVT mini ter

["Benedict White" <benedict@myrealbox.com>]

Right, well I have made some progress sort off.

I am using kernel 2.6.10-rc3.

I took the cvs, and patched it with the patch mentioned in:
http://www.linuxtv.org/mailinglists/linux-dvb/2004/12-2004/msg00600.html

I then liked that in and recompiled the kernel and rebooted.

OK so far. 

Edited modprobe.conf to put in:
options bttv i2c_hw=1 card=0x71

On bootup bttv is loaded OK with:

Dec 22 15:46:02 pvr Linux video capture interface: v1.00
Dec 22 15:46:02 pvr bttv: driver version 0.9.15 loaded
Dec 22 15:46:02 pvr bttv: using 8 buffers with 2080k (520 pages) each for capture
Dec 22 15:46:02 pvr bttv: Bt8xx card found (0).
Dec 22 15:46:02 pvr ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 5
Dec 22 15:46:02 pvr PCI: setting IRQ 5 as level-triggered
Dec 22 15:46:02 pvr ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 5 (level, low) -> 
IRQ 5
Dec 22 15:46:02 pvr bttv0: Bt878 (rev 17) at 0000:00:0a.0, irq: 5, latency: 32, mmio: 
0xdf002000
Dec 22 15:46:02 pvr bttv0: detected: Twinhan VisionPlus DVB-T [card=113], PCI 
subsystem ID is 1822:0001
Dec 22 15:46:02 pvr bttv0: using: Twinhan DST + clones [card=113,insmod option]
Dec 22 15:46:02 pvr bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init]
Dec 22 15:46:03 pvr bttv0: using tuner=4
Dec 22 15:46:03 pvr bttv0: add subdevice "dvb0"
Dec 22 15:46:03 pvr bt878: AUDIO driver version 0.0.0 loaded
Dec 22 15:46:03 pvr bt878: Bt878 AUDIO function found (0).
Dec 22 15:46:03 pvr ACPI: PCI interrupt 0000:00:0a.1[A] -> GSI 5 (level, low) -> 
IRQ 5
Dec 22 15:46:03 pvr bt878(0): Bt878 (rev 17) at 00:0a.1, irq: 5, latency: 32, 
memory: 0xdf000000

Then I do a modprobe dvb_bt8xx

which gets me:

Dec 22 15:59:50 pvr DVB: registering new adapter (bttv0).
Dec 22 15:59:51 pvr DVB: registering frontend 0 (<NULL>)...

Then I modprobe dst dst_type=1

I then get nothing in kernel.log. Is that odd?

I get the following devices in /dev
dvb0.demux0
dvb0.dvr0
dvb0.frontend0
dvb0.net0

So nothing in /dev/dvb/adapter0/

so i symlinked as follows:

lrwxrwxrwx  1 root root 16 2004-12-22 16:03 demux0 -> /dev/dvb0.demux0
lrwxrwxrwx  1 root root 14 2004-12-22 16:03 dvr0 -> /dev/dvb0.dvr0
lrwxrwxrwx  1 root root 19 2004-12-22 16:03 frontend0 -> /dev/dvb0.frontend0


Then when I ran ./dvbscan -c and get a segmentation fault as follows:

Dec 22 16:03:40 pvr Unable to handle kernel NULL pointer dereference at virtual 
address 000001ec
Dec 22 16:03:40 pvr printing eip:
Dec 22 16:03:40 pvr c02a7bed
Dec 22 16:03:40 pvr *pde = 00000000
Dec 22 16:03:40 pvr Oops: 0000 [#1]
Dec 22 16:03:40 pvr PREEMPT SMP
Dec 22 16:03:40 pvr Modules linked in: dvb_bt8xx nxt6000 mt352 sp887x dst_ca 
dst tulip bt878 tuner bttv video_buf firmware_cl$
Dec 22 16:03:40 pvr CPU:    0
Dec 22 16:03:40 pvr EIP:    0060:[<c02a7bed>]    Tainted: G S    VLI
Dec 22 16:03:40 pvr EFLAGS: 00010286   (2.6.10-rc3-ARCH)
Dec 22 16:03:40 pvr EIP is at dvb_frontend_ioctl+0x4d/0x6a0
Dec 22 16:03:40 pvr eax: 00000000   ebx: 80a86f3d   ecx: 00000000   edx: 
00000000
Dec 22 16:03:40 pvr esi: cfd07b00   edi: 80a86f3d   ebp: cf7efba0   esp: c9b10e88
Dec 22 16:03:40 pvr ds: 007b   es: 007b   ss: 0068
Dec 22 16:03:40 pvr Process dvbscan (pid: 2941, threadinfo=c9b10000 
task=cf1440e0)
Dec 22 16:03:40 pvr Stack: c0513a80 c9a1bb7c cfb9407c ffffffa1 00000000 
c014f19b 00000000 cfd53dd8
Dec 22 16:03:40 pvr 00000001 c9a1bb7c cfb9407c cfb94040 00000000 cfd10760 
c02162d2 cfd10760
Dec 22 16:03:40 pvr 08050260 80a86f3d fffffff2 cfd10760 cfd10760 c029f77c 
cf4527a0 cf7efba0
Dec 22 16:03:40 pvr Call Trace:
Dec 22 16:03:40 pvr [<c014f19b>] pte_alloc_map+0xab/0xe0
Dec 22 16:03:40 pvr [<c02162d2>] copy_from_user+0x42/0x70
Dec 22 16:03:40 pvr [<c029f77c>] dvb_usercopy+0xdc/0x156
Dec 22 16:03:40 pvr [<c016a990>] chrdev_open+0x0/0x1d0
Dec 22 16:03:40 pvr [<c01601a6>] dentry_open+0xc6/0x270
Dec 22 16:03:40 pvr [<c01600cc>] filp_open+0x5c/0x70
Dec 22 16:03:40 pvr [<c01611a4>] vfs_write+0xb4/0x160
Dec 22 16:03:40 pvr [<c029f226>] dvb_generic_ioctl+0x46/0x50
Dec 22 16:03:40 pvr [<c02a7ba0>] dvb_frontend_ioctl+0x0/0x6a0
Dec 22 16:03:40 pvr [<c01747de>] sys_ioctl+0x1ee/0x250
Dec 22 16:03:40 pvr [<c01031f9>] sysenter_past_esp+0x52/0x71
Dec 22 16:03:40 pvr Code: 70 28 8b 46 0c 89 44 24 10 b8 a1 ff ff ff 89 44 24 0c a1 
f0 c1 58 c0 85 c0 0f 85 00 01 00 00 85 f6 $


Now obviously idiocy on my part can't be excluded, but I wondered if anyone had 
any thoughts?

Kind regards


Benedict White