@@ -39,6 +39,11 @@
#endif
#include <libusb.h>
+#ifdef CONFIG_LINUX
+#include <sys/ioctl.h>
+#include <linux/usbdevice_fs.h>
+#endif
+
#include "qapi/error.h"
#include "migration/vmstate.h"
#include "monitor/monitor.h"
@@ -885,6 +890,7 @@ static void usb_host_ep_update(USBHostDevice *s)
static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd)
{
USBDevice *udev = USB_DEVICE(s);
+ int libusb_speed;
int bus_num = 0;
int addr = 0;
int rc;
@@ -935,7 +941,36 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd)
usb_ep_init(udev);
usb_host_ep_update(s);
- udev->speed = speed_map[libusb_get_device_speed(dev)];
+ libusb_speed = libusb_get_device_speed(dev);
+#ifdef CONFIG_LINUX
+ if (hostfd && libusb_speed == 0) {
+ /*
+ * Workaround libusb bug: libusb_get_device_speed() does not
+ * work for libusb_wrap_sys_device() devices in v1.0.23.
+ *
+ * Speeds are defined in linux/usb/ch9.h, file not included
+ * due to name conflicts.
+ */
+ int rc = ioctl(hostfd, USBDEVFS_GET_SPEED, NULL);
+ switch (rc) {
+ case 1: /* low */
+ libusb_speed = LIBUSB_SPEED_LOW;
+ break;
+ case 2: /* full */
+ libusb_speed = LIBUSB_SPEED_FULL;
+ break;
+ case 3: /* high */
+ case 4: /* wireless */
+ libusb_speed = LIBUSB_SPEED_HIGH;
+ break;
+ case 5: /* super */
+ case 6: /* super plus */
+ libusb_speed = LIBUSB_SPEED_SUPER;
+ break;
+ }
+ }
+#endif
+ udev->speed = speed_map[libusb_speed];
usb_host_speed_compat(s);
if (s->ddesc.iProduct) {
libusb_get_device_speed() does not work for libusb_wrap_sys_device() devices in v1.0.23. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1871090 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20200824110057.32089-1-kraxel@redhat.com --- hw/usb/host-libusb.c | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-)