Messages in this thread | | | Date | Thu, 28 Apr 2005 11:06:14 -0700 | From | "Randy.Dunlap" <> | Subject | Re: Extremely poor umass transfer rates |
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On Thu, 28 Apr 2005 19:55:40 +0200 Mark Rosenstand wrote:
| On Thu, 2005-04-28 at 12:59 -0400, Dave Jones wrote: | > On Thu, Apr 28, 2005 at 06:02:22PM +0200, Mark Rosenstand wrote: | > > I get transfer rates at around 30 kB/s to USB mass storage devices. It | > > applies to both my keyring and my mp3 player. Both are running vfat. | > > | > > I'm running 2.6.12-rc3 for amd64 with patches for inotify and skge. The | > > motherboard is an ASUS K8V-X (VIA K8T800). | > > | > > It worked alright earlier (2.6.10 or 2.6.11, I'll test later if | > > necessary.) | > > | > > Also, if I transfer more than one file at a time the music tracks start | > > overlapping on my mp3 player. | > | > Are you running it on a USB 2.0 capable interface ?
with the EHCI host controller driver loaded?
| I believe so. How do I verify it?
(see below) and post /proc/bus/usb/devices (contents)
| I've tried to move it to the other on-board hub but without results. | | > Is your mp3 player USB2.0 capable ? | | I'm not sure. But I do know that it used to be *much* faster than this. | My keyring is USB 2.0 capable and that's slow as well. | | > USB1.1 is painfully slow for storage. | | Yeah, but I don't think it should be 30 kB/s. | | Some more details: | | | The line that 'hald' puts in fstab looks like this: | | /dev/sdb /media/usbdisk vfat \ | user,exec,noauto,utf8,noatime,sync,managed 0 0 | | | The relevant parts of my .config: | | # | # Miscellaneous USB options | # | CONFIG_USB_DEVICEFS=y | # CONFIG_USB_BANDWIDTH is not set | # CONFIG_USB_DYNAMIC_MINORS is not set | # CONFIG_USB_SUSPEND is not set | # CONFIG_USB_OTG is not set | | # | # USB Host Controller Drivers | # | CONFIG_USB_EHCI_HCD=y OK, EHCI answer is Yes.
| # CONFIG_USB_EHCI_SPLIT_ISO is not set | # CONFIG_USB_EHCI_ROOT_HUB_TT is not set | # CONFIG_USB_OHCI_HCD is not set | CONFIG_USB_UHCI_HCD=y | # CONFIG_USB_SL811_HCD is not set | | [...] | | CONFIG_USB_STORAGE=m | | | What my dmesg tells me when I attach the device: | | usb 2-1: new full speed USB device using uhci_hcd and address 6
"full speed" is USB 1.x (12 Mbps, not high-speed 480 Mbps), so the device is reporting itself as less than high-speed or the USB descriptor parsing is missing it somehow (but it works for a few hundred other devices).
| scsi6 : SCSI emulation for USB Mass Storage devices | usb-storage: device found at 6 | usb-storage: waiting for device to settle before scanning | Vendor: iriver Model: MassStorage Disc Rev: | Type: Direct-Access ANSI SCSI revision: 00 | SCSI device sdb: 249857 512-byte hdwr sectors (128 MB) | sdb: Write Protect is off | sdb: Mode Sense: 45 00 00 08 | sdb: assuming drive cache: write through | SCSI device sdb: 249857 512-byte hdwr sectors (128 MB) | sdb: Write Protect is off | sdb: Mode Sense: 45 00 00 08 | sdb: assuming drive cache: write through | sdb: | Attached scsi removable disk sdb at scsi6, channel 0, id 0, lun 0 | usb-storage: device scan complete | | Thanks for the advices so far :-)
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