[SOLVED] LinuxTV driver for Pinnacle PCTV200e does not work since Ubuntu 11.10

sergio.otero · 10-30-2011, 11:43 AM

Hi

I've been downloading the unofficial driver for "Pinnacle PCTV200e" from linuxtv.org since Ubuntu 9, and it has always worked perfectly.

This hardware is a DVB USB Tuner with a subsystem ID of 2304:020e

I've recently upgraded to Ubuntu 11.10 (kernel 3.0.0.0-12) and i haven't been able to make it work.

I've compiled the module, installed it to the kernel and it appears as loaded in lsmod and with traces in dmesg

lsmod:

Quote:

pctv200e 22529 0
dvb_usb 24444 1 pctv200e
usbhid 47198 0
dvb_core 110616 1 dvb_usb
rc_core 26963 7 ir_lirc_codec,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,ir_nec_decoder,dvb_usb
wmi 19256 1 asus_wmi
i2c_algo_bit 13423 1 i915
hid 95463 1 usbhid

dmesg:

Quote:

[ 0.547553] usbcore: registered new interface driver usbfs
[ 0.547559] usbcore: registered new interface driver hub
[ 0.547572] usbcore: registered new device driver usb
[ 7.927870] usbcore: registered new interface driver usbhid
[ 7.927871] usbhid: USB HID core driver
[ 7.929161] usbcore: registered new interface driver dvb_usb_pctv200e
[ 7.929163] pctv200e: usb_register successfull.

Problem is that /dev/dvb directories does not appear.
I haven't seen any error.

I would appreciate any indication on where to look for an error or what to test.

It could be a problem with udev, but i'm not an expert on it.

In this linuxtv page it says (http://linuxtv.org/wiki/index.php/Ho...Device_Drivers)

Quote:

If the Modules load correctly
1. They should be listed in /proc/modules
2. They should provide some indication within your system log
3. The device manager udev will "automagically" create appropriate device nodes on /dev:
(a) For a DVB device, you should now have a non-empty /dev/dvb directory.

Thanks.

Sergio

sergio.otero · 10-31-2011, 05:18 AM

First compilations did not work because the unofficial driver did not compile with the latest git repository from linuxtv, so i did a few changes.

Mainly, a structure had a pointer and now is a list. I looked at some of the official drivers, and they all seem to use the first ocurrence (change ->fe to ->fe_adapt[0].fe

I think that these changes and some constants were not effective in ".c" files compiled before solving these minor problems.

A "make clean", "make" and "sudo make install" has half solved the problem.

Now i have the /dev/dvb subdirectories, but there's an error in dmesg and the driver does not fully load.

I will try to locate the problem.

Thanks anyway.

Quote:

[ 44.058684] pctv200e: attaching and initializing mt352 frontend.
[ 44.258418] pctv200e: PCTV200e initialized mt352
[ 44.292622] pctv200e: mt352 frontend attached.
[ 44.292628] DVB: registering adapter 0 frontend 0 (Zarlink MT352 DVB-T)...
[ 44.318339] MT2060: successfully identified (IF1 = 1220)
[ 45.444843] pctv200e: tuner mt2060 attached.
[ 45.444847] pctv200e: tuner mt2060 set_params starting.
[ 45.444856] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 45.444910] IP: [<ffffffffa02a2184>] pctv200e_tuner_attach+0x84/0x120 [dvb_usb_pctv200e]
[ 45.444950] PGD 11ce50067 PUD 11eb25067 PMD 0
[ 45.444968] Oops: 0002 [#1] SMP
[ 45.444982] CPU 1
[ 45.444989] Modules linked in: mt2060 ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sony_decoder ir_jvc_decoder mt352 ir_rc6_decoder ir_rc5_decoder dvb_usb_pctv200e(+) dvb_usb ir_nec_decoder dvb_core rc_core usbhid hid bnep rfcomm bluetooth binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek ppdev eeepc_wmi asus_wmi sparse_keymap snd_hda_intel snd_hda_codec snd_hwdep snd_pcm parport_pc snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device wmi snd mei(C) lm75 i915 soundcore snd_page_alloc coretemp drm_kms_helper drm i2c_algo_bit video lp parport xhci_hcd pata_via r8169
[ 45.445190]
[ 45.445197] Pid: 1473, comm: modprobe Tainted: G C 3.0.0-12-generic #20-Ubuntu System manufacturer System Product Name/P8H67-M PRO
[ 45.445233] RIP: 0010:[<ffffffffa02a2184>] [<ffffffffa02a2184>] pctv200e_tuner_attach+0x84/0x120 [dvb_usb_pctv200e]
[ 45.445264] RSP: 0018:ffff8801255cfc08 EFLAGS: 00010292
[ 45.445278] RAX: ffffffffa03292a0 RBX: ffff880125e69178 RCX: 000000000003ffff
[ 45.445298] RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffffffffa02a4228
[ 45.445316] RBP: ffff8801255cfc18 R08: 000000000000000a R09: 0000000000000000
[ 45.445336] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 45.445354] R13: 0000000000000000 R14: ffff880125e69178 R15: ffff880125e69250
[ 45.445374] FS: 00007fccb01f9720(0000) GS:ffff88013fa80000(0000) knlGS:0000000000000000
[ 45.445395] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 45.445411] CR2: 0000000000000008 CR3: 000000011f5f3000 CR4: 00000000000406e0
[ 45.445430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.445450] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 45.445469] Process modprobe (pid: 1473, threadinfo ffff8801255ce000, task ffff8801337bdc80)
[ 45.445491] Stack:
[ 45.445498] ffff880125e69178 ffff880125e69178 ffff8801255cfc58 ffffffffa0213cf8
[ 45.445522] ffff8801255cfc58 0000000000000000 ffff880125e68000 ffff880125e69178
[ 45.445546] 0000000000000001 ffff880125e692e0 ffff8801255cfce8 ffffffffa0212c79
[ 45.445570] Call Trace:
[ 45.445581] [<ffffffffa0213cf8>] dvb_usb_adapter_frontend_init+0xc8/0x1b0 [dvb_usb]
[ 45.445602] [<ffffffffa0212c79>] dvb_usb_device_init+0x5a9/0x850 [dvb_usb]
[ 45.445622] [<ffffffffa02a20dc>] pctv200e_probe+0x2c/0x50 [dvb_usb_pctv200e]
[ 45.445644] [<ffffffff814506c3>] usb_probe_interface+0xd3/0x1e0
[ 45.445661] [<ffffffff813ce4e8>] really_probe+0x68/0x190
[ 45.445677] [<ffffffff813ce775>] driver_probe_device+0x45/0x70
[ 45.445694] [<ffffffff813ce84b>] __driver_attach+0xab/0xb0
[ 45.445710] [<ffffffff813ce7a0>] ? driver_probe_device+0x70/0x70
[ 45.445727] [<ffffffff813ce7a0>] ? driver_probe_device+0x70/0x70
[ 45.445744] [<ffffffff813cd5dc>] bus_for_each_dev+0x5c/0x90
[ 45.445760] [<ffffffff813ce2ae>] driver_attach+0x1e/0x20
[ 45.445775] [<ffffffff813cdf00>] bus_add_driver+0x1a0/0x270
[ 45.445791] [<ffffffff813cedb6>] driver_register+0x76/0x140
[ 45.445809] [<ffffffff8144f541>] usb_register_driver+0xa1/0x190
[ 45.445827] [<ffffffffa0019000>] ? 0xffffffffa0018fff
[ 45.445842] [<ffffffffa0019020>] pctv200e_module_init+0x20/0x1000 [dvb_usb_pctv200e]
[ 45.445865] [<ffffffff81002042>] do_one_initcall+0x42/0x180
[ 45.445883] [<ffffffff8109ff2e>] sys_init_module+0xbe/0x230
[ 45.445902] [<ffffffff815f22c2>] system_call_fastpath+0x16/0x1b
[ 45.445918] Code: a0 31 c0 e8 36 19 33 e1 48 c7 c7 f8 41 2a a0 31 c0 e8 28 19 33 e1 48 8b 83 88 05 00 00 48 c7 c7 28 42 2a a0 48 8b 80 30 02 00 00
[ 45.446013] 89 44 24 08 48 8b 83 88 05 00 00 48 c7 80 30 02 00 00 40 20
[ 45.446061] RIP [<ffffffffa02a2184>] pctv200e_tuner_attach+0x84/0x120 [dvb_usb_pctv200e]
[ 45.446086] RSP <ffff8801255cfc08>
[ 45.446095] CR2: 0000000000000008
[ 45.506053] ---[ end trace 5b2e1fbf3b5050f3 ]---
[ 172.192542] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

sergio.otero · 10-31-2011, 09:19 AM

I've managed to make it work :-)

As I said before, in the previous version there was only 1 adapter in the "dvb_usb_adapter" struct, but now it's an array

The original code did not compile, so i changed "adap->fe" to "adap->fe_adap[0].fe" and it compiled (other official drivers have the same approach)
The problem was that this code compiled, but "adap->priv" was null. I've change it from "adap->priv" to "adap->fe_adap[0].priv" and now works perfectly.

I will try to submit the new pctv200e.c to linuxtv.

Naki78 · 12-09-2011, 02:30 PM

Hi Sergio, I'm not able to use this driver after compiling with 3.0.0-14-generic and 3.0.0 source kernel.

The message after modprobe is:

FATAL: Error inserting dvb_usb_pctv200e (/lib/modules/3.0.0-14-generic/kernel/drivers/media/dvb/dvb-usb/dvb-usb-pctv200e.ko): Invalid module format

Please help!!!

thank you

sergio.otero · 12-11-2011, 01:04 PM

Hi

I'm not an expert, but try this:

sudo make rminstall
make clean
make release
make
sudo make install