| Message ID | 20201127183840.10315-1-info@metux.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw: usb: fix break on older kernel headers that miss USBDEVFS_GET_SPEED | expand |
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c index b950501d10..c894a4b148 100644 --- a/hw/usb/host-libusb.c +++ b/hw/usb/host-libusb.c @@ -941,7 +941,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd) usb_host_ep_update(s); libusb_speed = libusb_get_device_speed(dev); -#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX) +#ifdef USBDEVFS_GET_SPEED if (hostfd && libusb_speed == 0) { /* * Workaround libusb bug: libusb_get_device_speed() does not
Older kernel headers lack the USBDEVFS_GET_SPEED ioctl. Qemu can easily work without it, but the api version check isn't sufficient. Instead time consuming bisection, for finding the really correct version, just change the ifdef to look for the symbol, instead of api version. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> --- hw/usb/host-libusb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)