# [ 42.516880] usb 2-1: new full-speed USB device number 2 using ohci-platform
Jan 1 00:00:47 buildroot user.info kernel: [ 42.516880] usb 2-1: new full-speed USB device number 2 using ohci-platform
[ 42.726887] usb 2-1: device descriptor read/64, error -62
Jan 1 00:00:47 buildroot user.err kernel: [ 42.726887] usb 2-1: device descriptor read/64, error -62
[ 43.046886] usb 2-1: device descriptor read/64, error -62
Jan 1 00:00:48 buildroot user.err kernel: [ 43.046886] usb 2-1: device descriptor read/64, error -62
[ 43.366883] usb 2-1: new full-speed USB device number 3 using ohci-platform
Jan 1 00:00:48 buildroot user.info kernel: [ 43.366883] usb 2-1: new full-speed USB device number 3 using ohci-platform
[ 43.576887] usb 2-1: device descriptor read/64, error -62
Jan 1 00:00:48 buildroot user.err kernel: [ 43.576887] usb 2-1: device descriptor read/64, error -62
[ 43.896887] usb 2-1: device descriptor read/64, error -62
Jan 1 00:00:48 buildroot user.err kernel: [ 43.896887] usb 2-1: device descriptor read/64, error -62
[ 44.216885] usb 2-1: new full-speed USB device number 4 using ohci-platform
Jan 1 00:00:49 buildroot user.info kernel: [ 44.216885] usb 2-1: new full-speed USB device number 4 using ohci-platform
[ 44.656884] usb 2-1: device not accepting address 4, error -62
Jan 1 00:00:49 buildroot user.err kernel: [ 44.656884] usb 2-1: device not accepting address 4, error -62
[ 44.856892] usb 2-1: new full-speed USB device number 5 using ohci-platform
Jan 1 00:00:49 buildroot user.info kernel: [ 44.856892] usb 2-1: new full-speed USB device number 5 using ohci-platform
[ 45.296892] usb 2-1: device not accepting address 5, error -62
[ 45.302833] usb usb2-port1: unable to enumerate USB device
Jan 1 00:00:50 buildroot user.err kernel: [ 45.296892] usb 2-1: device not accepting address 5, error -62
Jan 1 00:00:50 buildroot user.err kernel: [ 45.302833] usb usb2-port1: unable to enumerate USB device离线
[ 0.928517] libphy: stmmac: probed
[ 0.933997] usbcore: registered new interface driver rtl8192cu
[ 0.939960] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.946486] ehci-platform: EHCI generic platform driver
[ 0.952058] ehci-platform 1c1a000.usb: EHCI Host Controller
[ 0.957741] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
[ 0.965669] ehci-platform 1c1a000.usb: irq 25, io mem 0x01c1a000
[ 0.997014] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
[ 1.004328] hub 1-0:1.0: USB hub found
[ 1.008278] hub 1-0:1.0: 1 port detected
[ 1.012851] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.019153] ohci-platform: OHCI generic platform driver
[ 1.024710] ohci-platform 1c1a400.usb: Generic Platform OHCI controller
[ 1.031434] ohci-platform 1c1a400.usb: new USB bus registered, assigned bus number 2
[ 1.039399] ohci-platform 1c1a400.usb: irq 26, io mem 0x01c1a400
[ 1.112080] hub 2-0:1.0: USB hub found
[ 1.115907] hub 2-0:1.0: 1 port detected
[ 1.123088] usbcore: registered new interface driver usb-storage
[ 1.129464] musb-sunxi 1c19000.usb: Invalid or missing 'dr_mode' property
[ 1.136280] musb-sunxi: probe of 1c19000.usb failed with error -22
[ 1.143334] input: 1c22800.lradc as /devices/platform/soc/1c22800.lradc/input/input0离线
原来是好的。能正常反应，只是枚举不对，然后我让硬件加了一个电阻，然后修改了一下USB的配置，现在启动起来是正常的。但却不能枚举了。。。
不知道是哪里的错。。。。
离线
目前已经好了，我把原来USB参数全部复原后，在原来的基础上只多加了打开一个：ｕｓｂ ｍａｓｓ ｓｔｏｒａｇｅ 的选项，其他的没有再多加，现在已经OK了。
离线