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RE: [nslu2-general] Re: CUPS Printer stopped working after addition of USB hub...

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  • Inge Bjørnvall Arnesen
    When I said don t work well , I hid some facts. It is not that it doesn t work at all, but the kernel has a local crash and has problems assigning local
    Message 1 of 4 , Sep 2, 2005
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      When I said "don't work well", I hid some facts. It is not that it doesn't
      work at all, but the kernel has a local crash and has problems assigning
      local addresses to USB devices. Like you, I've had success with one device
      connected to a hub, but not two. Check out the log as you connect the second
      device.

      best,

      -- Inge


      ----Original Message----
      From: nslu2-general@yahoogroups.com
      [mailto:nslu2-general@yahoogroups.com] On Behalf Of jar240
      Sent: 2. september 2005 04:23 To:
      nslu2-general@yahoogroups.com Subject: [nslu2-general] Re:
      CUPS Printer stopped working after addition of USB hub...

      > --- In nslu2-general@yahoogroups.com, "Inge B. Arnesen"
      > <i.b.arnesen@f...> wrote:
      > > Yes - it is a FAQ - 2.0 hubs don't work well on Unslung
      > > <=5.5. This
      > is not
      > > only storage devices, but any devices.
      > >
      > > Please add this to the FAQ if the last guy didn't do it.
      >
      > Ah, okay. I checked the FAQ, and it is in there. The
      > strange thing is, why would the USB 2.0 hard drive I also
      > have attached to the hub work without problem, while the
      > printer doesn't?
      >
      > Here's my /proc/bus/usb/devices:
      >
      > # cat devices
      > T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12
      > MxCh= 2
      > B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
      > D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs=
      > 1
      > P: Vendor=0000 ProdID=0000 Rev= 0.00
      > S: Product=USB OHCI Root Hub
      > S: SerialNumber=c3880000
      > C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
      > I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00
      > Driver=hub
      > E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
      > T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12
      > MxCh= 3
      > B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
      > D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs=
      > 1
      > P: Vendor=0000 ProdID=0000 Rev= 0.00
      > S: Product=USB OHCI Root Hub
      > S: SerialNumber=c387a000
      > C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
      > I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00
      > Driver=hub
      > E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
      > T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480
      > MxCh= 5
      > B: Alloc= 0/800 us ( 0%), #Int= 1, #Iso= 0
      > D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs=
      > 1
      > P: Vendor=0000 ProdID=0000 Rev= 2.04
      > S: Manufacturer=Linux 2.4.22-xfs ehci_hcd
      > S: Product=NEC Corporation USB 2.0
      > S: SerialNumber=00:01.2
      > C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
      > I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00
      > Driver=hub
      > E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms
      > T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480
      > MxCh= 0
      > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=
      > 1
      > P: Vendor=06e1 ProdID=d804 Rev= 0.01
      > S: Manufacturer=ADS Technologies
      > S: Product=USB2.0 Drive Kit
      > S: SerialNumber=DEF1098BE4C1
      > C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
      > I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
      > Driver=usb-storage
      > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      > E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      > T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=480
      > MxCh= 7
      > D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs=
      > 1
      > P: Vendor=2001 ProdID=f103 Rev= 2.00
      > S: Manufacturer=D-LINK DUB-H7 USB HUB
      > S: Product=DUB-H7
      > S: SerialNumber=947337877678 = wired support
      > C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
      > I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00
      > Driver=hub
      > E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
      > T: Bus=01 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 6 Spd=480
      > MxCh= 0
      > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=
      > 1
      > P: Vendor=14c2 ProdID=0001 Rev= 0.00
      > S: Manufacturer=Gemlight
      > S: Product=uPD720130
      > C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
      > I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
      > Driver=usb-storage
      > E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      > T: Bus=01 Lev=02 Prnt=03 Port=03 Cnt=02 Dev#= 6 Spd=480
      > MxCh= 0
      > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=
      > 1
      > P: Vendor=14c2 ProdID=0001 Rev= 0.00
      > S: Manufacturer=Gemlight
      > S: Product=uPD720130
      > C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
      > I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
      > Driver=usb-storage
      > E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
      >
      >
      > Chris
      >
      >
      >
      >
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