From: Gerd Hoffmann <kra...@redhat.com>
Fixes build failures with old kernels (USBDEVFS_GET_SPEED missing),
on the assumtion that distros with old kernels also have old libusb.
Reported-by: Alex Bennée <alex.ben...@linaro.org>
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Message-Id: <20200902081445.3291-1-kra...@redhat.com>
Message-Id: <20200909112742.25730-3-alex.ben...@linaro.org>
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 08604f787fd..c5d38cb09c0 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -942,7 +942,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device
*dev, int hostfd)
usb_host_ep_update(s);
libusb_speed = libusb_get_device_speed(dev);
-#ifdef CONFIG_LINUX
+#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX)
if (hostfd && libusb_speed == 0) {
/*
* Workaround libusb bug: libusb_get_device_speed() does not
--
2.20.1
