linux - USB无线桌面组合不断重置 "reset full speed USB device"

Question

我在类似于 Boundary devices nitrogen6x 开发板的自定义 freescale i.mx6 开发板上运行 Linux 3.0.35_4.1.0。

我遇到的问题是，当我为“Microsoft Wireless Desktop 2000”连接无线收发器加密狗时，鼠标间歇性工作，而键盘根本不工作。

收发器的HID ID为045e:0745

终端中的错误是:

root@devonit-tc3:~# 
root@devonit-tc3:~# [ 59.225756] usb 1-1: USB disconnect, device number 2
[ 61.050541] usb 1-1: new full speed USB device number 3 using fsl-ehci
[ 61.211567] usb 1-1: device v045e p0745 is not supported
[ 61.224000] input: Microsoft Microsoft® 2.4GHz Transceiver v7.0 as /devices/platform/fsl-ehci.0/usb1/1-1/1-1:1.0/input/input3
[ 61.237194] generic-usb 0003:045E:0745.0003: input,hidraw0: USB HID v1.11 Keyboard [Microsoft Microsoft® 2.4GHz Transceiver v7.0] on usb-fsl-ehci.0-1/input0
[ 61.261561] input: Microsoft Microsoft® 2.4GHz Transceiver v7.0 as /devices/platform/fsl-ehci.0/usb1/1-1/1-1:1.1/input/input4
[ 61.277992] generic-usb 0003:045E:0745.0004: input,hidraw1: USB HID v1.11 Mouse [Microsoft Microsoft® 2.4GHz Transceiver v7.0] on usb-fsl-ehci.0-1/input1
[ 61.327164] input: Microsoft Microsoft® 2.4GHz Transceiver v7.0 as /devices/platform/fsl-ehci.0/usb1/1-1/1-1:1.2/input/input5
[ 61.344711] generic-usb 0003:045E:0745.0005: input,hiddev0,hidraw2: USB HID v1.11 Device [Microsoft Microsoft® 2.4GHz Transceiver v7.0] on usb-fsl-ehci.0-1/input2
[ 62.560605] usb 1-1: reset full speed USB device number 3 using fsl-ehci
[ 63.940594] usb 1-1: reset full speed USB device number 3 using fsl-ehci
[ 64.230571] usb 1-1: reset full speed USB device number 3 using fsl-ehci
[ 65.590572] usb 1-1: reset full speed USB device number 3 using fsl-ehci
[ 65.880556] usb 1-1: reset full speed USB device number 3 using fsl-ehci

Answer 1

内核配置选项“改进的事务转换器调度”(CONFIG_USB_EHCI_TT_NEWSCHED) 是必需的。

这使 Microsoft Wireless Desktop 2000 能够与我们的设备完美配合。