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| author | Gerd Hoffmann <kraxel@redhat.com> | 2013-01-14 15:29:44 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2013-01-22 11:09:54 +0100 |
| commit | 347073336d393a819928de0d4fd56563134c0e1a (patch) | |
| tree | 7329052639f59ba20b9a0798dbe594d5eea7266c /docs/usb-storage.txt | |
| parent | 7fa96d73893728752ec7b832a62a48c434748497 (diff) | |
| download | qemu-347073336d393a819928de0d4fd56563134c0e1a.zip qemu-347073336d393a819928de0d4fd56563134c0e1a.tar.gz qemu-347073336d393a819928de0d4fd56563134c0e1a.tar.bz2 | |
usb: add usb-bot device (scsi bulk-only transport).
Basically the same as usb-storage, but without automatic scsi
device setup. Also features support for up to 16 LUNs.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'docs/usb-storage.txt')
| -rw-r--r-- | docs/usb-storage.txt | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/docs/usb-storage.txt b/docs/usb-storage.txt index e58e849..fa93111 100644 --- a/docs/usb-storage.txt +++ b/docs/usb-storage.txt @@ -2,7 +2,7 @@ qemu usb storage emulation -------------------------- -QEMU has two emulations for usb storage devices. +QEMU has three devices for usb storage emulation. Number one emulates the classic bulk-only transport protocol which is used by 99% of the usb sticks on the marked today and is called @@ -31,6 +31,15 @@ with tree logical units: -device scsi-cd,bus=uas.0,scsi-id=0,lun=5,drive=uas-cdrom +Number three emulates the classic bulk-only transport protocol too. +It's called "usb-bot". It shares most code with "usb-storage", and +the guest will not be able to see the difference. The qemu command +line interface is simliar to usb-uas though, i.e. no automatic scsi +disk creation. It also features support for up to 16 LUNs. The LUN +numbers must be continous, i.e. for three devices you must use 0+1+2. +The 0+1+5 numbering from the "usb-uas" example isn't going to work +with "usb-bot". + enjoy, Gerd |