Re: USB question

[Miles Bader <miles.bader@necel.com>]

Brad Rogers <brad@fineby.me.uk> writes:
> Not lsmod, but lsusb.  Fingers faster than brain, today.   :-x

BTW, is lsusb known to be broken these days?  I have a USB thumb drive
that works just fine, but "lsusb" doesn't show it, even while it's
mounted and I'm doing I/O to it!  Indeed, lsusb doesn't seem to show
much of anything...

lsusb shows nothing very useful:

   $ lsusb -v
   $ lsusb --version
   lsusb (usbutils) 0.72
   $ lsusb -v -t
   Bus#  3
   `-Dev#   1 Vendor 0x0000 Product 0x0000
     `-Dev#   3 Vendor 0x04bb Product 0x0c45
   Bus#  2
   `-Dev#   1 Vendor 0x0000 Product 0x0000
   Bus#  1
   `-Dev#   1 Vendor 0x0000 Product 0x0000
     `-Dev#   2 Vendor 0x046d Product 0xc00e

But udev found the drive:

   $ udevinfo  --name=sda1 --query=all
   P: /block/sda/sda1
   N: sda1
   S: disk/by-id/usb-I-O_DATA_USB_Flash_Disk_A0E0C772300014-0:0-part1
   S: disk/by-path/pci-0000:00:1d.7-usb-0:2:1.0-scsi-0:0:0:0-part1
   S: disk/by-uuid/1E1B-2835
   E: ID_VENDOR=I-O_DATA
   E: ID_MODEL=USB_Flash_Disk
   E: ID_REVISION=A2C
   E: ID_SERIAL=I-O_DATA_USB_Flash_Disk_A0E0C772300014-0:0
   E: ID_SERIAL_SHORT=A0E0C772300014
   E: ID_TYPE=disk
   E: ID_INSTANCE=0:0
   E: ID_BUS=usb
   E: ID_PATH=pci-0000:00:1d.7-usb-0:2:1.0-scsi-0:0:0:0
   E: ID_FS_USAGE=filesystem
   E: ID_FS_TYPE=vfat
   E: ID_FS_VERSION=FAT16
   E: ID_FS_UUID=1E1B-2835
   E: ID_FS_UUID_ENC=1E1B-2835
   E: ID_FS_LABEL=
   E: ID_FS_LABEL_ENC=
   E: ID_FS_LABEL_SAFE=

And it's even mounted:

   $ mount | grep sda1
   /dev/sda1 on /media/usb type vfat (rw,noexec,nosuid,nodev,noatime,user=miles)

IIRC, lsusb used to be much more useful than this...

Thanks,

-Miles

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