I have this usb card:
Edimax USB 2.0 PCI Card
Chip: VIA VT6202 Ver. 8.
Ports: 4
It works correctly with uhci, but does not work with ehci.
Modprobe gives 2 errors with ehci [0].
Interresting is, that uhci finds 2 hubs with 2 ports, but ehci finds 1 hub
with 4 ports [1] [2].
Do you think there is just one hub for ehci, or has the hub detection in the
driver a bug?
Also possible is that the wireing on the motherboard has a problem, because
the motherboard has 4 ports integrated. These ports work with ohci. What can
i do if this is the problem?
Here are the error messages when I plug in an usb storage with ehci [3].
Thanks for any tipps, please ask for more information if needed!
Markus
[0]
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
[1]
1.1. 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
1.2. 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
[2]
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]
3.1. Port 2: (raw sense data error)
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. 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
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