diff options
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 e58e849d4d..fa93111cf6 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 |