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[Qemu-devel] [PATCH] usb-host: set ifs.detached as true if kernel driver
From: |
linzhecheng |
Subject: |
[Qemu-devel] [PATCH] usb-host: set ifs.detached as true if kernel driver is not active |
Date: |
Tue, 20 Nov 2018 09:18:15 +0800 |
If no kernel driver is active, we can already claim and perform I/O on
it without detaching it.
Signed-off-by: linzhecheng <address@hidden>
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index f31e9cbbb8..db4ae1e6e8 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -1119,6 +1119,10 @@ static void usb_host_detach_kernel(USBHostDevice *s)
for (i = 0; i < USB_MAX_INTERFACES; i++) {
rc = libusb_kernel_driver_active(s->dh, i);
usb_host_libusb_error("libusb_kernel_driver_active", rc);
+ if (rc == 0) {
+ s->ifs[i].detached = true;
+ continue;
+ }
if (rc != 1) {
continue;
}
--
2.12.2.windows.2
- [Qemu-devel] [PATCH] usb-host: set ifs.detached as true if kernel driver is not active,
linzhecheng <=