Re: [SeaBIOS] [PATCH] Support USB MSC devices with multiples LUNs

[Paolo Bonzini]

Il 12/06/2012 03:32, Kevin O'Connor ha scritto:
> -int bootprio_find_usb(struct usbdevice_s *usbdev)
> +int bootprio_find_usb(struct usbdevice_s *usbdev, int lun)
>  {
>      if (!CONFIG_BOOTORDER)
>          return -1;
> // Find usb - for example: /pci@i0cf8/usb@1,2/hub@1/network@0/ethernet@0
> // Find usb - for example: /pci@i0cf8/usb@1,2/storage@1/channel@0/disk@0,0
> char desc[256], *p;
> p = build_pci_path(desc, sizeof(desc), "usb", usbdev->hub->cntl->pci);
> p = build_usb_path(p, desc+sizeof(desc)-p, usbdev->hub);
> snprintf(p, desc+sizeof(desc)-p, "/*@%x", usbdev->port+1);
> snprintf(p, desc+sizeof(desc)-p, "/*@%x/*@0/*@0,%d", usbdev->port+1, lun);
> return find_prio(desc);

This will not work if you're redirecting a USB device from the host,
because then you will not have the SCSI-specific elements of the path.
I suggest that you fall back to "/*@%x" if find_prio returns failure and
lun=0.

Paolo