[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PATCH] hw: usb: fix break on older kernel headers that miss USBDEVFS_GE

From: Enrico Weigelt, metux IT consult
Subject: [PATCH] hw: usb: fix break on older kernel headers that miss USBDEVFS_GET_SPEED
Date: Fri, 27 Nov 2020 19:38:40 +0100

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(-)

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)
     libusb_speed = libusb_get_device_speed(dev);
-#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX)
     if (hostfd && libusb_speed == 0) {
          * Workaround libusb bug: libusb_get_device_speed() does not

reply via email to

[Prev in Thread] Current Thread [Next in Thread]