diff options
| -rw-r--r-- | docs/man/xl.cfg.pod.5 | 28 | ||||
| -rw-r--r-- | tools/libxl/xl_cmdimpl.c | 20 |
2 files changed, 37 insertions, 11 deletions
diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5 index 8db24d7954..f8b4576b43 100644 --- a/docs/man/xl.cfg.pod.5 +++ b/docs/man/xl.cfg.pod.5 @@ -1145,17 +1145,27 @@ device. =item B<usb=BOOLEAN> -Enables or disables a USB bus in the guest. +Enables or disables an emulated USB bus in the guest. -=item B<usbdevice=DEVICE> +=item B<usbdevice=[ "DEVICE", "DEVICE", ...]> -Adds B<DEVICE> to the USB bus. The USB bus must also be enabled using -B<usb=1>. The most common use for this option is B<usbdevice=tablet> -which adds pointer device using absolute coordinates. Such devices -function better than relative coordinate devices (such as a standard -mouse) since many methods of exporting guest graphics (such as VNC) -work better in this mode. Note that this is independent of the actual -pointer device you are using on the host/client side. +Adds B<DEVICE>s to the emulated USB bus. The USB bus must also be +enabled using B<usb=1>. The most common use for this option is +B<usbdevice=['tablet']> which adds pointer device using absolute +coordinates. Such devices function better than relative coordinate +devices (such as a standard mouse) since many methods of exporting +guest graphics (such as VNC) work better in this mode. Note that this +is independent of the actual pointer device you are using on the +host/client side. + +Host devices can also be passed through in this way, by specifying +host:USBID, where USBID is of the form xxxx:yyyy. The USBID can +typically be found by using lsusb or usb-devices. + +The form usbdevice=DEVICE is also accepted for backwards compatibility. + +More valid options can be found in the "usbdevice" section of the qemu +documentation. =back diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c index 2d40f8f79c..61f7b96824 100644 --- a/tools/libxl/xl_cmdimpl.c +++ b/tools/libxl/xl_cmdimpl.c @@ -1533,8 +1533,24 @@ skip_vfb: xlu_cfg_replace_string (config, "serial", &b_info->u.hvm.serial, 0); xlu_cfg_replace_string (config, "boot", &b_info->u.hvm.boot, 0); xlu_cfg_get_defbool(config, "usb", &b_info->u.hvm.usb, 0); - xlu_cfg_replace_string (config, "usbdevice", - &b_info->u.hvm.usbdevice, 0); + switch (xlu_cfg_get_list_as_string_list(config, "usbdevice", + &b_info->u.hvm.usbdevice_list, + 1)) + { + + case 0: break; /* Success */ + case ESRCH: break; /* Option not present */ + case EINVAL: + /* If it's not a valid list, try reading it as an atom, + * falling through to an error if it fails */ + if (!xlu_cfg_replace_string(config, "usbdevice", + &b_info->u.hvm.usbdevice, 0)) + break; + /* FALLTHRU */ + default: + fprintf(stderr,"xl: Unable to parse usbdevice.\n"); + exit(-ERROR_FAIL); + } xlu_cfg_replace_string (config, "soundhw", &b_info->u.hvm.soundhw, 0); xlu_cfg_get_defbool(config, "xen_platform_pci", &b_info->u.hvm.xen_platform_pci, 0); |