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#1 2010-12-31 13:37:07
- capoeira
- Member
- From: Vila Velha - Brasil
- Registered: 2010-05-25
- Posts: 470
Force a USB device to use OHCI
Hi, I have some problems with EHCI on my motherboard. it's the motherboard since it's a problem on every distro i tried.
I have a wireless-device wich conects yo EHCI and a USB-HD.
problem is that the devices disconect sometimes.
I want to force the wireless to use OHCI and I found this script: http://moserei.de/index.php/96/force-a- … omment-121
but I have problem runing it, since usb-directory doesn't exist here in /proc/bus..why is that?
[studio@myhost bin]$ sudo ./force_ohci.sh "0846:4260"
cat: /proc/bus/usb/devices: file or directory not found
./force_ohci.sh: line 16: 0 + : syntax error: operand expected (error token is "+ ")can anybody help out?
Last edited by capoeira (2010-12-31 13:37:40)
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#2 2011-01-01 02:48:46
- Daniel_F
- Member
- From: Brazil
- Registered: 2010-12-28
- Posts: 69
Re: Force a USB device to use OHCI
That's because you don't have usbfs mounted.
Run:
sudo mount -t usbfs usbfs /proc/bus/usband then try your script.
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#3 2011-01-01 15:46:35
- capoeira
- Member
- From: Vila Velha - Brasil
- Registered: 2010-05-25
- Posts: 470
Re: Force a USB device to use OHCI
valeu cara,
BUT
[studio@myhost bin]$ sudo mount -t usbfs usbfs /proc/bus/usb
Senha:
mount: o ponto de montagem /proc/bus/usb não existeand /proc/bus is write protected even for root. why is that? can I create that directory?
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#4 2011-01-01 16:14:43
- Daniel_F
- Member
- From: Brazil
- Registered: 2010-12-28
- Posts: 69
Re: Force a USB device to use OHCI
Hmmm.... I tried it here and it worked !
The /proc being read-only is normal. It's a virtual file-system.
I'll investigate it more later (sorry, not today !)
As a workaroud, if your motherboard has problems with EHCI then you won't be using it for anything so maybe adding
!ehci_hcdto the
MODULES=()in your rc.conf to blacklist the EHCI driver works.
BTW, please post the output of
# cat /etc/mtaband
# lsmodOffline
#5 2011-01-01 16:33:45
- capoeira
- Member
- From: Vila Velha - Brasil
- Registered: 2010-05-25
- Posts: 470
Re: Force a USB device to use OHCI
Hmmm.... I tried it here and it worked !
hum, could be the liqourix-kernel I use?! will try out the regular kernel later
As a workaroud, if your motherboard has problems with EHCI then you won't be using it for anything so maybe adding
unfortunatly this is no solution as i have a external HD. I could unable USB2 in bios, too...there is an option...but i need it
BTW, please post the output of
# cat /etc/mtab
[studio@myhost ~]$ cat /etc/mtab
proc /proc proc rw,relatime
sys /sys sysfs rw,relatime
udev /dev devtmpfs rw,nosuid,relatime,size=10240k,nr_inodes=124825,mode=755
/dev/disk/by-uuid/d15efb1a-a129-4e35-91a4-b0bd085a1def / ext4 rw,noatime,barrier=1,data=ordered
devpts /dev/pts devpts rw 0 0
shm /dev/shm tmpfs rw,nosuid,nodev 0 0
/dev/sda2 /home ext4 rw,noatime 0 0
/dev/sdb2 /home/studio/USB ext3 rw,noatime 0 0and
# lsmod
[studio@myhost ~]$ lsmod
Module Size Used by
snd_seq_dummy 1310 0
snd_seq_oss 26204 0
snd_seq_midi_event 5911 1 snd_seq_oss
snd_seq 46157 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_usb_audio 84792 2
snd_pcm 69218 2 snd_usb_audio
snd_timer 17879 2 snd_seq,snd_pcm
snd_page_alloc 7016 1 snd_pcm
snd_hwdep 5176 1 snd_usb_audio
snd_usbmidi_lib 16378 1 snd_usb_audio
snd_rawmidi 18884 1 snd_usbmidi_lib
snd_seq_device 5526 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd 53726 12 snd_seq_oss,snd_seq,snd_usb_audio,snd_pcm,snd_timer,snd_hwdep,snd_usbmidi_lib,snd_rawmidi,snd_seq_device
soundcore 6588 1 snd
ipv6 269847 8
af_packet 17226 2
ext3 117855 1
jbd 45645 1 ext3
arc4 1125 2
ecb 1651 2
rtl8187 53128 0
mac80211 183412 1 rtl8187
cfg80211 139444 2 rtl8187,mac80211
usb_storage 38877 2
rfkill 15550 1 cfg80211
eeprom_93cx6 1305 1 rtl8187
ppdev 5247 0
ohci_hcd 21110 0
ssb 43127 1 ohci_hcd
fan 2711 0
mmc_core 63403 1 ssb
sis_agp 3795 1
parport_pc 29734 1
floppy 51715 0
pcmcia 35050 1 ssb
pcmcia_core 13309 1 pcmcia
lp 7637 0
parport 31045 3 ppdev,parport_pc,lp
psmouse 51175 0
agpgart 30247 1 sis_agp
led_class 2497 2 rtl8187,psmouse
shpchp 24269 0
thermal 10491 0
ehci_hcd 34688 0
processor 26042 0
pci_hotplug 25461 1 shpchp
button 4521 0
sg 19833 0
evdev 7003 9
serio_raw 3822 0
rtc_cmos 7995 0
rtc_core 13192 1 rtc_cmos
rtc_lib 2221 1 rtc_core
ext4 312831 2
mbcache 5886 2 ext3,ext4
jbd2 69616 1 ext4
crc16 1343 1 ext4
sd_mod 31240 7
pata_acpi 2487 0
pata_sis 8638 3
libata 169607 2 pata_acpi,pata_sisOffline
#6 2011-01-04 17:39:18
- Daniel_F
- Member
- From: Brazil
- Registered: 2010-12-28
- Posts: 69
Re: Force a USB device to use OHCI
Did you try with the standard kernel ??
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#7 2011-01-04 18:01:32
- capoeira
- Member
- From: Vila Velha - Brasil
- Registered: 2010-05-25
- Posts: 470
Re: Force a USB device to use OHCI
Did you try with the standard kernel ??
yes, with the standart kernel /proc/bus/usb gets mounted
the script doesn't seam to work though:
[studio@myhost ~]$ sudo mount -t usbfs usbfs /proc/bus/usb
Senha:
[studio@myhost ~]$ cd /usr/local/bin/
[studio@myhost bin]$ sudo ./force_ohci.sh "0846:4260"
[studio@myhost bin]$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 067b:2507 Prolific Technology, Inc. PL2507 Hi-speed USB to IDE bridge controller
Bus 001 Device 003: ID 0846:4260 NetGear, Inc. WG111v3 54 Mbps Wireless [realtek RTL8187B]
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 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
[studio@myhost bin]$ cat /proc/interrupts
CPU0
0: 37 XT-PIC-XT timer
1: 1368 XT-PIC-XT i8042
2: 0 XT-PIC-XT cascade
3: 0 XT-PIC-XT ohci_hcd:usb3
4: 1 XT-PIC-XT
5: 0 XT-PIC-XT ohci_hcd:usb4
6: 2 XT-PIC-XT floppy
7: 118 XT-PIC-XT parport0
8: 5 XT-PIC-XT rtc0
9: 1 XT-PIC-XT acpi, ohci_hcd:usb2
10: 446214 XT-PIC-XT ehci_hcd:usb1
12: 220362 XT-PIC-XT i8042
14: 54984 XT-PIC-XT pata_sis
15: 0 XT-PIC-XT pata_sis
NMI: 28 Non-maskable interrupts
LOC: 1545562 Local timer interrupts
SPU: 0 Spurious interrupts
PMI: 28 Performance monitoring interrupts
PND: 0 Performance pending work
RES: 0 Rescheduling interrupts
CAL: 0 Function call interrupts
TLB: 0 TLB shootdowns
TRM: 0 Thermal event interrupts
THR: 0 Threshold APIC interrupts
MCE: 0 Machine check exceptions
MCP: 38 Machine check polls
ERR: 0
MIS: 0
[studio@myhost bin]$ Offline
#8 2011-01-05 15:17:12
- Daniel_F
- Member
- From: Brazil
- Registered: 2010-12-28
- Posts: 69
Re: Force a USB device to use OHCI
So the problem you quoted in the first post is solved.
Now is a matter of debugging the script. You need to analize it and understand what it is suposed to do. Then you'll be able to figure out why it's not doing it. But we can't do your homework for you ! 
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#9 2011-01-05 16:02:38
- capoeira
- Member
- From: Vila Velha - Brasil
- Registered: 2010-05-25
- Posts: 470
Re: Force a USB device to use OHCI
So the problem you quoted in the first post is solved.
Now is a matter of debugging the script. You need to analize it and understand what it is suposed to do. Then you'll be able to figure out why it's not doing it. But we can't do your homework for you !
lol, I didn't expect you or someone to do that. quoted post is solved, yes. but if anybody knows an other way to "Force a USB device to use OHCI" ........
Thank you, Daniel ;-)
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