On 07-12-2011 12:25, Fredrik Lingvall wrote:
On 12/07/11 14:55, Mauro Carvalho Chehab wrote:
<snip>
Bus 2 doesn't seem to do anything [Alloc= 0/800 us ( 0%)] while I'm scanning!?
Scanning envolves 2 different things:
1) tuning and locking into a channel;
2) streaming and filtering, in order to seek for program tables
inside the MPEG-TS.
Step 1 uses USB control messages.
Only at step 2, the device will use the USB ISOC packets. The USB core will
see if is there enough bandwidth to reserve for ISOC transfers on that time
(based on other traffic data), and submit the URB's (or return -ENOSPC
otherwise).
BTW: I'm running Gentoo x86_64 (amd64) on a Dell M2400 laptop with an SSD disk.
Other hardware connected is a 200 GB disk using the eSata slot, a 1TB WD disk
connected using another USB slot, a RME Multiface II soundcard using the
expresscard slot.
The external USB disk may be interfering, if it is also at bus 2.
Also, some laptops use USB for some internal components like wireless.
Please remove all other USB devices, disable wireless (if your device is USB)
and try again.
Regards,
Mauro
No there's nothing else at Bus 2 (I did a umount on the WD usb disk, cannot
unplug devices since I'm logged in remotely right now), and Wireless is a pci
device:
lin-tv ~ # lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory
Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express
Graphics Port (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network
Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1
(rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2
(rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3
(rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4
(rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 RAID bus controller: Intel Corporation Mobile 82801 SATA RAID
Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation Device 06fb (rev a1)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter (rev 21)
03:01.2 SD Host controller: Ricoh Co Ltd R5C843 MMC Host Controller (rev 11)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh]
Network Connection
0e:00.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev
3c)
lin-tv ~ # lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 413c:2513 Dell Computer Corp. internal USB Hub of E-Port
Replicator
Bus 001 Device 005: ID 0c45:63f8 Microdia Sonix Integrated Webcam
Bus 003 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of
BCM2046 Bluetooth)
Bus 005 Device 002: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications
Processor
Bus 006 Device 002: ID 0451:2036 Texas Instruments, Inc. TUSB2036 Hub
Bus 003 Device 003: ID 413c:8157 Dell Computer Corp. Integrated Keyboard
Bus 003 Device 004: ID 413c:8158 Dell Computer Corp. Integrated Touchpad /
Trackstick
Bus 006 Device 004: ID 046d:c704 Logitech, Inc. diNovo Wireless Desktop
Bus 003 Device 005: ID 413c:8156 Dell Computer Corp. Wireless 370 Bluetooth
Mini-card
Bus 002 Device 008: ID 2040:1605 Hauppauge
Devices at Bus 2:
lin-tv ~ # lsusb | grep "Bus 002"
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 008: ID 2040:1605 Hauppauge
There's nothing at the DVB core returning -ENOSPC.
Try to add just one line to a channels file, like this one:
C 602000000 6900000 NONE QAM256
(this is the transponder that failed with w_scan. You could also use one
of the transponders where you got a pid timeout with scan)
Then call scan with this file, using strace:
$ strace -e ioctl dvbscan channelfile
This would allow to see what ioctl returned -ENOSPC (error -28).
Regards,
Mauro
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