Edimax USB 2.0 PCI Card
Chip: VIA VT6202 Ver. 8.
Ports: 4

1. Bootup Meldungen:

May 22 09:10:54 localhost kernel: ehci_hcd 00:0c.2: USB 2.0 enabled, EHCI
0.95, driver 2003-Dec-29/2.4
May 22 09:10:54 localhost kernel: hub.c: USB hub found
May 22 09:10:54 localhost kernel: hub.c: 4 ports detected
Mai 22 09:10:54 localhost usb: Initializing USB controller (ehci-hcd):
succeeded
May 22 09:10:54 localhost kernel: hub.c: port 3 over-current change
May 22 09:10:54 localhost kernel: hub.c: port 4 over-current change

2. Laden von Treiber:

2.1. uhci_hcd

May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.0: VIA Technologies, Inc. USB
May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.0: irq 5, io base 0000da00
May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.0: new USB bus registered, assigned bus number 2
May 31 07:31:07 superbyte kernel: hub 2-0:1.0: USB hub found
May 31 07:31:07 superbyte kernel: hub 2-0:1.0: 2 ports detected
May 31 07:31:07 superbyte kernel: AMD756: dev 1106:3038, router pirq : 2 get irq : 11
May 31 07:31:07 superbyte kernel: PCI: Found IRQ 11 for device 0000:00:0c.1
May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.1: VIA Technologies, Inc. USB (#2)
May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.1: irq 11, io base 0000dc00
May 31 07:31:07 superbyte kernel: uhci_hcd 0000:00:0c.1: new USB bus registered, assigned bus number 3
May 31 07:31:07 superbyte kernel: hub 3-0:1.0: USB hub found
May 31 07:31:07 superbyte kernel: hub 3-0:1.0: 2 ports detected

2.2. ehci_hcd

May 31 07:31:07 superbyte kernel: AMD756: dev 1106:3104, router pirq : 3 get irq :  9
May 31 07:31:07 superbyte kernel: PCI: Found IRQ 9 for device 0000:00:0c.2
May 31 07:31:07 superbyte kernel: PCI: Sharing IRQ 9 with 0000:00:0a.0
May 31 07:31:07 superbyte kernel: ehci_hcd 0000:00:0c.2: VIA Technologies, Inc. USB 2.0
May 31 07:31:07 superbyte kernel: ehci_hcd 0000:00:0c.2: irq 9, pci mem d8965f00
May 31 07:31:07 superbyte kernel: ehci_hcd 0000:00:0c.2: new USB bus registered, assigned bus number 4
May 31 07:31:07 superbyte kernel: ehci_hcd 0000:00:0c.2: USB 2.0 enabled, EHCI 0.95, driver 2003-Dec-29
May 31 07:31:07 superbyte kernel: hub 4-0:1.0: USB hub found
May 31 07:31:07 superbyte kernel: hub 4-0:1.0: 4 ports detected

3. Anstecken eines Gerätes

3.1. Anstecken an Port 2:

Jun  6 20:05:07 superbyte kernel: usb 1-2: new high speed USB device using address 3
Jun  6 20:05:08 superbyte kernel: scsi10 : SCSI emulation for USB Mass Storage devices
Jun  6 20:05:08 superbyte kernel:   Vendor: TinyDisk  Model: 2004-03-31        Rev: 2.00
Jun  6 20:05:08 superbyte kernel:   Type:   Direct-Access                      ANSI SCSI revision: 02
Jun  6 20:05:08 superbyte kernel: sda: Unit Not Ready, sense:
Jun  6 20:05:08 superbyte kernel: Current : sense = 70  6
Jun  6 20:05:08 superbyte kernel: ASC=28 ASCQ= 0
Jun  6 20:05:08 superbyte kernel: Raw sense data:0x70 0x00 0x06 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x28 0x00 0x00 0x00 0x00 0x00
Jun  6 20:05:08 superbyte kernel: SCSI device sda: 512000 512-byte hdwr sectors (262 MB)
Jun  6 20:05:08 superbyte kernel: sda: assuming Write Enabled
Jun  6 20:05:08 superbyte kernel:  sda: sda1
Jun  6 20:05:08 superbyte kernel: Attached scsi removable disk sda at scsi10, channel 0, id 0, lun 0
Jun  6 20:05:08 superbyte kernel: Attached scsi generic sg0 at scsi10, channel 0, id 0, lun 0,  type 0
Jun  6 20:05:09 superbyte scsi.agent[7176]: disk at /devices/pci0000:00/0000:00:0c.2/usb1/1-2/1-2:1.0/host10/10:0:0:0

3.2. Anstecken an Port 4:

ehci_hcd 0000:00:0c.2: port 4 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 4 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 4 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 4 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 4 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
hub 4-0:1.0: Cannot enable port 4.  Maybe the USB cable is bad?
usb 3-2: new full speed USB device using address 2
usb 3-2: USB disconnect, address 2

3.3. Port 2

ehci_hcd 0000:00:0c.2: port 2 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 2 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 2 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 2 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
ehci_hcd 0000:00:0c.2: port 2 reset error -110
hub 4-0:1.0: hub_port_status failed (err = -32)
hub 4-0:1.0: Cannot enable port 2.  Maybe the USB cable is bad?
ehci_hcd 0000:00:0c.2: remove, state 1
usb usb4: USB disconnect, address 1
ehci_hcd 0000:00:0c.2: USB bus 4 deregistered
usb 2-2: new full speed USB device using address 2

4. Zusätzliche Informationen

4.1. hdparm

root@superbyte:/proc/scsi# hdparm -tT /dev/sda

/dev/sda:
 Timing buffer-cache reads:   128 MB in  1.94 seconds = 65.82 MB/sec
 Timing buffered disk reads:  64 MB in 10.51 seconds =  6.09 MB/sec

4.2. interrupts

root@superbyte:/var/log# cat /proc/interrupts
           CPU0
  0:   39871519          XT-PIC  timer
  1:      73755          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  5:    1886616          XT-PIC  HiSax, uhci_hcd
  9:     409458          XT-PIC  EMU10K1, ehci_hcd
 10:        289          XT-PIC  NE2000
 11:        516          XT-PIC  ohci_hcd, uhci_hcd
 12:     854754          XT-PIC  i8042
 14:     803039          XT-PIC  ide0
 15:        177          XT-PIC  ide1
NMI:          0
ERR:          0

4.3. Devices

root@superbyte:/proc/bus/usb# cat /proc/bus/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 4
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.06
S:  Manufacturer=Linux 2.6.6 ehci_hcd
S:  Product=VIA Technologies, Inc. USB 2.0
S:  SerialNumber=0000:00:0c.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=04 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= 2.06
S:  Manufacturer=Linux 2.6.6 uhci_hcd
S:  Product=VIA Technologies, Inc. USB (#2)
S:  SerialNumber=0000:00:0c.1
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=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= 2.06
S:  Manufacturer=Linux 2.6.6 uhci_hcd
S:  Product=VIA Technologies, Inc. USB
S:  SerialNumber=0000:00:0c.0
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= 4
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= 2.06
S:  Manufacturer=Linux 2.6.6 ohci_hcd
S:  Product=Advanced Micro Devices [AMD] AMD-756 [Viper] USB
S:  SerialNumber=0000:00:07.4
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

5. Port Erkennung:

5.1. mit uhci

Bus 002 Device 001: ID 0000:0000 Virtual Hub
  idVendor           0x0000 Virtual
  idProduct          0x0000 Hub
  bcdDevice            2.06
  iManufacturer           3 Linux 2.6.7 uhci_hcd
  iProduct                2 VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#2)
  iSerial                 1 0000:00:0c.1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               none


Bus 001 Device 001: ID 0000:0000 Virtual Hub
  idVendor           0x0000 Virtual
  idProduct          0x0000 Hub
  bcdDevice            2.06
  iManufacturer           3 Linux 2.6.7 uhci_hcd
  iProduct                2 VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
  iSerial                 1 0000:00:0c.0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               none

5.2. hingegen mit ehci:

Bus 001 Device 001: ID 0000:0000 Virtual Hub
  idVendor           0x0000 Virtual
  idProduct          0x0000 Hub
  bcdDevice            2.06
  iManufacturer           3 Linux 2.6.7 ehci_hcd
  iProduct                2 VIA Technologies, Inc. USB 2.0
  iSerial                 1 0000:00:0c.2
       Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               none