Opened 15 years ago

Closed 14 years ago

#4082 closed defect (fixed)

USB pasthrough limited to USB 1.1 speeds

Reported by: Sam Morris Owned by:
Component: USB Version: VirtualBox 2.2.2
Keywords: Cc:
Guest type: Linux Host type: Windows


I used Vista Home Basic (SP1) as a host, and conencted a USB mass storage device to the host and configured it to be passed through to the guest.

Transferring files from the disk was limited to 1.1 MB/sec, which is the speed of a USB Full Speed device.

Log messages from the Linux kernel indicate that as far as the guest was concerned, it was a USB 2.0 ("high speed") device:

[    3.967326] ehci_hcd 0000:00:0b.0: EHCI Host Controller
[    3.967417] ehci_hcd 0000:00:0b.0: new USB bus registered, assigned bus number 1
[    3.967711] ehci_hcd 0000:00:0b.0: irq 19, io mem 0xf0805000
[    3.976063] ehci_hcd 0000:00:0b.0: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[    3.976110] usb usb1: configuration #1 chosen from 1 choice
[    3.976126] hub 1-0:1.0: USB hub found
[    3.976130] hub 1-0:1.0: 8 ports detected
[    4.080125] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    4.080127] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    4.080128] usb usb1: Product: EHCI Host Controller
[    4.080129] usb usb1: Manufacturer: Linux 2.6.26-2-amd64 ehci_hcd
[    4.080131] usb usb1: SerialNumber: 0000:00:0b.0


[  187.700381] usb 1-1: new high speed USB device using ehci_hcd and address 2
[  188.137721] usb 1-1: configuration #1 chosen from 1 choice
[  188.180643] usb 1-1: New USB device found, idVendor=152d, idProduct=2338
[  188.180677] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=5
[  188.180689] usb 1-1: Product: USB to ATA/ATAPI Bridge
[  188.180700] usb 1-1: Manufacturer: JMicron
[  188.180711] usb 1-1: SerialNumber: C05762222222

Attachments (2)

slow usb kernel messages (23.6 KB ) - added by Sam Morris 15 years ago.
linux kernel log messages from guest
wintermute-2009-05-23-14-49-52.log (45.4 KB ) - added by Sam Morris 15 years ago.
virtualbox log

Download all attachments as: .zip

Change History (4)

by Sam Morris, 15 years ago

Attachment: slow usb kernel messages added

linux kernel log messages from guest

by Sam Morris, 15 years ago

virtualbox log

comment:1 by Pedro Côrte-Real, 15 years ago

I have the same issue with a Windows XP host and Ubuntu guest and it makes using external drives and memory card readers painfully slow. This has been like that on every version of Virtualbox I've ever used, since around ~1.6. Any chance of solving this bug? Does anyone actually get 2.0 speeds?

comment:2 by Frank Mehnert, 14 years ago

Resolution: fixed
Status: newclosed

Closing. Later VBox releases should give some better USB-performance. We are aware that USB is far away from getting native speed but many devices should achieve a higher speed than USB1.1.

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