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mirror_qemu
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usb: make attach optional. 

Add a auto_attach field to USBDevice, which is enabled by default.
USB drivers can clear this field in case they do *not* want the device
being attached (i.e. plugged into a usb port) automatically after
successfull init().

Use cases (see next patches):
 * attaching encrypted mass storage devices.
 * -usbdevice host:...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
master
Gerd Hoffmann 2009-10-26 15:56:48 +01:00 committed by Anthony Liguori
parent 2b0efdc3e1
commit 61e094c049
2 changed files with 3 additions and 1 deletions
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3
hw/usb-bus.c
View File

@ -45,8 +45,9 @@ static int usb_qdev_init(DeviceState *qdev, DeviceInfo *base)
pstrcpy(dev->devname, sizeof(dev->devname), qdev->info->name);
dev->info = info;
dev->auto_attach = 1;
rc = dev->info->init(dev);
if (rc == 0)
if (rc == 0 && dev->auto_attach)
usb_device_attach(dev);
return rc;
}

1
hw/usb.h
View File

@ -133,6 +133,7 @@ struct USBDevice {
int speed;
uint8_t addr;
char devname[32];
int auto_attach;
int attached;
int state;