On 12/18/11 10:20, Fredrik Lingvall wrote:
On 12/17/11 20:53, Mihai Dobrescu wrote:
Mihai,
I got some success. I did this,
# cd /usr/src (for example)
# git clone git://linuxtv.org/media_build.git
# emerge dev-util/patchutils
# emerge Proc-ProcessTable
# cd media_build
# ./build
# make install
Which will install the latest driver on your running kernel (just in
case
make sure /usr/src/linux points to your running kernel sources). Then
reboot.
You should now see that (among other) modules have loaded:
# lsmod
<snip>
em28xx 93528 1 em28xx_dvb
v4l2_common 5254 1 em28xx
videobuf_vmalloc 4167 1 em28xx
videobuf_core 15151 2 em28xx,videobuf_vmalloc
Then try w_scan and dvbscan etc. I got mythtv to scan too now. There
were
some warnings and timeouts and I'm not sure if this is normal or not.
You can also do a dmesg -c while scanning to monitor the changes en the
kernel log.
Regards,
/Fredrik
In my case I have:
lsmod |grep em2
em28xx_dvb 12608 0
dvb_core 76187 1 em28xx_dvb
em28xx 82436 1 em28xx_dvb
v4l2_common 5087 1 em28xx
videodev 70123 2 em28xx,v4l2_common
videobuf_vmalloc 3783 1 em28xx
videobuf_core 12991 2 em28xx,videobuf_vmalloc
rc_core 11695 11
rc_hauppauge,ir_lirc_codec,ir_mce_kbd_decoder,ir_sanyo_decoder,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,em28xx,ir_nec_decoder
tveeprom 12441 1 em28xx
i2c_core 14232 9
xc5000,drxk,em28xx_dvb,em28xx,v4l2_common,videodev,tveeprom,nvidia,i2c_i801
yet, w_scan founds nothing.
I was able to scan using the "media_build" install method described
above but when trying to watch a free channel the image and sound was
stuttering severly. I have tried both MythTV and mplayer with similar
results.
I created the channel list for mplayer with:
lintv ~ # dvbscan -x0 -fc /usr/share/dvb/dvb-c/no-Oslo-Get -o zap >
.mplayer/channels.conf
And, for example, I get this output from mplayer plus a very (blocky)
stuttering image and sound:
lin-tv ~ # mplayer dvb://1@"TV8 Oslo" -ao jack
I did some more tests with release snapshots 2011-12-13, 2011-12-21, and
2011-12-25, respectively. I did this by changing
LATEST_TAR :=
http://linuxtv.org/downloads/drivers/linux-media-LATEST.tar.bz2
LATEST_TAR_MD5 :=
http://linuxtv.org/downloads/drivers/linux-media-LATEST.tar.bz2.md5
in linux/Makefile to the corresponding release.
Results:
* linux-media-2011-12-13.tar.bz2
The ./build script builds the drivers cleanly, scanning works, but
watching video does not work correctly.
* linux-media-2011-12-21.tar.bz2
The ./build script fails at the as3645a.c file (on this machine but I
can build it on two other machines using the same kernel and kernel
2.6.39-gentoo-r3, respectively). I can build it with make menuconfig etc
(where I disabled stuff I don't need, eg. disabling [ ] Media Controller
API (EXPERIMENTAL) ). The em28xx generate a kernel core dump though [1].
* linux-media-2011-12-25.tar.bz2
Same problem as 2011-12-21.
Regards,
/Fredrik
[1]
[ 2231.881231] em28xx #0: chip ID is em2884
[ 2231.933025] em28xx #0: Identified as Hauppauge WinTV HVR 930C (card=81)
[ 2231.933132] em28xx #0: Config register raw data: 0xcb
[ 2231.933139] BUG: unable to handle kernel NULL pointer dereference at
0000000000000028
[ 2231.933325] IP: [<ffffffffa0df4538>] em28xx_wake_i2c+0x28/0xe0 [em28xx]
[ 2231.933425] PGD 1181ef067 PUD 118383067 PMD 0
[ 2231.933513] Oops: 0000 [#1] PREEMPT SMP
[ 2231.933601] CPU 0
[ 2231.933607] Modules linked in: em28xx(+) xc5000 coretemp drxk
nvidia(P) dvb_core rc_hauppauge ir_lirc_codec lirc_dev
ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder
ir_rc6_decoder ir_rc5_decoder ir_nec_decoder v4l2_common
videobuf_vmalloc videobuf_core uvcvideo rc_core videobuf2_core videodev
tveeprom media v4l2_compat_ioctl32 videobuf2_vmalloc videobuf2_memops
firewire_ohci iwlagn firewire_core mac80211 crc_itu_t snd_hdsp
snd_rawmidi e1000e [last unloaded: em28xx]
[ 2231.934117]
[ 2231.934117] Pid: 20150, comm: modprobe Tainted: P
3.0.6-gentoo #2 Dell Inc. Precision M2400 /0HT029
[ 2231.934117] RIP: 0010:[<ffffffffa0df4538>] [<ffffffffa0df4538>]
em28xx_wake_i2c+0x28/0xe0 [em28xx]
[ 2231.934117] RSP: 0018:ffff88011a34fbc8 EFLAGS: 00010213
[ 2231.934117] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000000
[ 2231.934117] RDX: ffffffff81c13468 RSI: 0000000000000082 RDI:
ffff8801184ca000
[ 2231.934117] RBP: ffff88011a34fbe8 R08: 0000000000000000 R09:
0000000000000000
[ 2231.934117] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8801184ca038
[ 2231.934117] R13: ffff8801184ca000 R14: ffff8801184ca000 R15:
ffff880119db0800
[ 2231.934117] FS: 00007f1b79fc2700(0000) GS:ffff88011fc00000(0000)
knlGS:0000000000000000
[ 2231.934117] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 2231.934117] CR2: 0000000000000028 CR3: 000000011445f000 CR4:
00000000000006f0
[ 2231.934117] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 2231.934117] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 2231.934117] Process modprobe (pid: 20150, threadinfo
ffff88011a34e000, task ffff88011a9660b0)
[ 2231.934117] Stack:
[ 2231.934117] 0000000000000000 0000000000000000 ffff8801184ca948
0000000000000000
[ 2231.934117] ffff88011a34fd58 ffffffffa0df1f69 0000000f00000000
ffff88011a34fc17
[ 2231.934117] ffffffffa0dfe8b0 00205d3800000001 ffff8801184ca030
ffff880119e2c430
[ 2231.934117] Call Trace:
[ 2231.934117] [<ffffffffa0df1f69>] em28xx_usb_probe+0x619/0xb80 [em28xx]
[ 2231.934117] [<ffffffff81495ec3>] usb_probe_interface+0x113/0x220
[ 2231.934117] [<ffffffff813e6616>] driver_probe_device+0x96/0x1c0
[ 2231.934117] [<ffffffff813e67db>] __driver_attach+0x9b/0xa0
[ 2231.934117] [<ffffffff813e6740>] ? driver_probe_device+0x1c0/0x1c0
[ 2231.934117] [<ffffffff813e565e>] bus_for_each_dev+0x5e/0x90
[ 2231.934117] [<ffffffff813e62a9>] driver_attach+0x19/0x20
[ 2231.934117] [<ffffffff813e5e40>] bus_add_driver+0xc0/0x280
[ 2231.934117] [<ffffffff813e6d7f>] driver_register+0x6f/0x130
[ 2231.934117] [<ffffffff814954d8>] usb_register_driver+0xb8/0x170
[ 2231.934117] [<ffffffffa00cd000>] ? 0xffffffffa00ccfff
[ 2231.934117] [<ffffffffa00cd023>] em28xx_module_init+0x23/0x4e [em28xx]
[ 2231.934117] [<ffffffff810002bf>] do_one_initcall+0x3f/0x170
[ 2231.934117] [<ffffffff81087a32>] sys_init_module+0x92/0x1e0
[ 2231.934117] [<ffffffff8170627b>] system_call_fastpath+0x16/0x1b
[ 2231.934117] Code: 00 00 00 55 48 89 e5 41 55 49 89 fd 41 54 4c 8d 67
38 53 48 83 ec 08 48 8b 5f 38 4c 39 e3 0f 84 ac 00 00 00 0f 1f 80 00 00
00 00
[ 2231.934117] 8b 43 28 48 8b 00 48 85 c0 74 10 48 8b 40 28 48 85 c0 74 07
[ 2231.934117] RIP [<ffffffffa0df4538>] em28xx_wake_i2c+0x28/0xe0 [em28xx]
[ 2231.934117] RSP <ffff88011a34fbc8>
[ 2231.934117] CR2: 0000000000000028
[ 2231.939276] ---[ end trace f190e9cb70245d0a ]---
lin-tv media_build #
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
