From a5c062edd272a222179c2bbf54c539c992aefc93 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Mon, 24 Jan 2011 15:35:01 +0000 Subject: docs: Document scsi-disk and usb-storage removable parameter Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- docs/qdev-device-use.txt | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'docs/qdev-device-use.txt') diff --git a/docs/qdev-device-use.txt b/docs/qdev-device-use.txt index f2f9b757a5..4bb2be8850 100644 --- a/docs/qdev-device-use.txt +++ b/docs/qdev-device-use.txt @@ -80,7 +80,11 @@ The -device argument differs in detail for each kind of drive: This SCSI controller a single SCSI bus, named ID.0. Put a disk on it: - -device scsi-disk,drive=DRIVE-ID,bus=ID.0,scsi-id=SCSI-ID + -device scsi-disk,drive=DRIVE-ID,bus=ID.0,scsi-id=SCSI-ID,removable=RMB + + The (optional) removable parameter lets you override the SCSI INQUIRY + removable (RMB) bit for non CD-ROM devices. It is ignored for CD-ROM devices + which are always removable. RMB is "on" or "off". * if=floppy @@ -116,7 +120,12 @@ For USB devices, the old way is actually different: Provides much less control than -drive's HOST-OPTS... The new way fixes that: - -device usb-storage,drive=DRIVE-ID + -device usb-storage,drive=DRIVE-ID,removable=RMB + +The removable parameter gives control over the SCSI INQUIRY removable (RMB) +bit. USB thumbdrives usually set removable=on, while USB hard disks set +removable=off. See the if=scsi description above for details on the removable +parameter, which applies only to scsi-disk devices and not to scsi-generic. === Character Devices === -- cgit v1.2.3