我有这个设备,当
libusb_reset_device
时会断开连接并重新连接,我如何将其转发到VM。我查看了源代码,它调用了libusb_reset_device
。
这是我连接该设备时的日志跟踪:
[email protected]:usb_host_open_started dev 2:3
[email protected]:usb_host_detach_kernel dev 2:3, if 0
[email protected]:usb_host_parse_config dev 2:3, value 1, active 1
[email protected]:usb_host_parse_interface dev 2:3, num 0, alt 0, active 1
[email protected]:usb_host_parse_endpoint dev 2:3, ep 1, in, bulk, active 1
. . .
[email protected]:usb_host_open_success dev 2:3
[email protected]:usb_host_reset dev 2:3
[email protected]:usb_host_reset dev 2:3
[email protected]:usb_host_close dev 2:3
[email protected]:usb_host_auto_scan_enabled
这是主机(不是虚拟机)的 dmesg 日志
Feb 14 16:43:25 win-pc kernel: usb 2-1: new high-speed USB device number 3 using xhci_hcd
Feb 14 16:43:25 win-pc kernel: usb 2-1: New USB device found, idVendor=1782, idProduct=5d24
Feb 14 16:43:25 win-pc kernel: usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Feb 14 16:43:25 win-pc kernel: usb 2-1: Product: Spreadtrum
Feb 14 16:43:25 win-pc kernel: usb 2-1: Manufacturer: Spreadtrum
Feb 14 16:43:25 win-pc kernel: usb 2-1: SerialNumber: 20161122200747
Feb 14 16:43:26 win-pc kernel: usb-storage 2-1:1.0: USB Mass Storage device detected
Feb 14 16:43:26 win-pc kernel: scsi host4: usb-storage 2-1:1.0
Feb 14 16:43:26 win-pc kernel: usbcore: registered new interface driver usb-storage
Feb 14 16:43:26 win-pc kernel: usbcore: registered new interface driver uas
Feb 14 16:43:27 win-pc kernel: scsi 4:0:0:0: Direct-Access Linux File-CD Gadget 0310 PQ: 0 ANSI: 2
Feb 14 16:43:27 win-pc kernel: sd 4:0:0:0: Power-on or device reset occurred
Feb 14 16:43:27 win-pc kernel: sd 4:0:0:0: [sdb] Attached SCSI removable disk
Feb 14 16:44:41 win-pc kernel: usb 2-1: reset high-speed USB device number 3 using xhci_hcd
Feb 14 16:44:41 win-pc kernel: usb 2-1: USB disconnect, device number 3
Feb 14 16:44:42 win-pc kernel: usb 2-1: new high-speed USB device number 4 using xhci_hcd
Feb 14 16:44:42 win-pc kernel: usb 2-1: New USB device found, idVendor=1782, idProduct=5d24
Feb 14 16:44:42 win-pc kernel: usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Feb 14 16:44:42 win-pc kernel: usb 2-1: Product: Spreadtrum
Feb 14 16:44:42 win-pc kernel: usb 2-1: Manufacturer: Spreadtrum
Feb 14 16:44:42 win-pc kernel: usb 2-1: SerialNumber: 20161122200747
Feb 14 16:44:42 win-pc kernel: usb-storage 2-1:1.0: USB Mass Storage device detected
Feb 14 16:44:42 win-pc kernel: scsi host4: usb-storage 2-1:1.0
Feb 14 16:44:43 win-pc kernel: scsi 4:0:0:0: Direct-Access Linux File-CD Gadget 0310 PQ: 0 ANSI: 2
. . .
如您所见,设备将自行断开连接,然后重新连接
如何将这种设备转发到VM
编辑1:
如果你想知道它是什么设备,它是一部 Android 手机。我想将它传递给虚拟机,这样我就可以在虚拟机上使用
adb
编辑2:
我的时区是 UTC+7。你可以根据时间戳看到qemu跟踪日志和dmesg日志之间的相关性
编辑3:
我尝试使用
device_add usb-host,vendorid=1782,productid=5d24
而不是使用 hostbus
和 hostaddr
,这会导致无限循环:
在 QEMU 中访问 USB 设备时,我们需要确保运行 QEMU 的用户具有访问连接到主机的 USB 设备所需的权限。
我假设已经考虑了 udev 规则。
我在链接到 libusb 库的“qemu-system-x86_64”QEMU 二进制文件中发现了一个错误。因此,我决定使用最新版本的 libusb 库来编译 QEMU 源代码。找到了一些有用的论坛,导致了这个决定 link1 link2
请按照此处提到的步骤操作:
构建libusb源代码并在您的ubuntu系统上正确安装
git clone https://github.com/libusb/libusb.git
git checkout tags/v1.0.22 -b V1.0.22
./configure --enable-udev --disable-static
make
sudo make install
构建Qemu源代码
git clone https://github.com/qemu/qemu.git
git checkout -b stable-6.1 origin/stable-6.1
./configure --target-list=x86_64-softmmu --enable-libusb --enable-kvm
make -j16
sudo make install