[ 464.109530] usb 2-1: new low-speed USB device number 2 using ohci-platform
[ 464.384062] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0001/input/input1
[ 464.436593] hid-generic 0003:1C4F:0034.0001: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 466.474402] usb 2-1: USB disconnect, device number 2
[ 466.929484] usb 2-1: new low-speed USB device number 3 using ohci-platform
[ 467.203941] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0002/input/input2
[ 467.256350] hid-generic 0003:1C4F:0034.0002: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 469.294617] usb 2-1: USB disconnect, device number 3
[ 469.749490] usb 2-1: new low-speed USB device number 4 using ohci-platform
[ 470.024041] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0003/input/input3
[ 470.076168] hid-generic 0003:1C4F:0034.0003: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 472.114612] usb 2-1: USB disconnect, device number 4
[ 472.569480] usb 2-1: new low-speed USB device number 5 using ohci-platform
[ 472.843955] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0004/input/input4
[ 472.896175] hid-generic 0003:1C4F:0034.0004: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 474.934784] usb 2-1: USB disconnect, device number 5
[ 475.389490] usb 2-1: new low-speed USB device number 6 using ohci-platform
[ 475.663965] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0005/input/input5
[ 475.716216] hid-generic 0003:1C4F:0034.0005: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 477.754660] usb 2-1: USB disconnect, device number 6
[ 478.209497] usb 2-1: new low-speed USB device number 7 using ohci-platform
[ 478.483979] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0006/input/input6
[ 478.536137] hid-generic 0003:1C4F:0034.0006: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 480.574644] usb 2-1: USB disconnect, device number 7
[ 481.029489] usb 2-1: new low-speed USB device number 8 using ohci-platform
[ 481.303977] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0007/input/input7
[ 481.356397] hid-generic 0003:1C4F:0034.0007: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 483.394924] usb 2-1: USB disconnect, device number 8
[ 483.849484] usb 2-1: new low-speed USB device number 9 using ohci-platform
[ 484.123949] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0008/input/input8
[ 484.176385] hid-generic 0003:1C4F:0034.0008: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 486.214372] usb 2-1: USB disconnect, device number 9
[ 486.669493] usb 2-1: new low-speed USB device number 10 using ohci-platform
[ 486.943974] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0009/input/input9
[ 486.996277] hid-generic 0003:1C4F:0034.0009: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 488.949971] usb 2-1: USB disconnect, device number 10离线
会不会是usb接口松动
没有松动， 我接 USB HUB, 几个U盘，小米的鼠标， 双飞燕的键盘都没有问题，
而且通过 HUB 接这个鼠标， 也是一样的问题。
离线
联想鼠标太垃圾
联想的鼠标还好, 我一直用他家的鼠标.
离线
开始还以为是我自己做的板子USB没处理好, 哪知道用荔枝派zero的板子也是一样.
# [ 471.655865] usb 2-1: new low-speed USB device number 3 using ohci-platform
[ 471.927440] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0005/input/input4
[ 471.960447] hid-generic 0003:1C4F:0034.0005: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
#
#
# [ 474.023148] usb 2-1: USB disconnect, device number 3
[ 474.465860] usb 2-1: new low-speed USB device number 4 using ohci-platform
[ 474.737421] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0006/input/input5
[ 474.770509] hid-generic 0003:1C4F:0034.0006: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
#
# [ 476.833646] usb 2-1: USB disconnect, device number 4
[ 477.275864] usb 2-1: new low-speed USB device number 5 using ohci-platform
[ 477.547351] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0007/input/input6
[ 477.581435] hid-generic 0003:1C4F:0034.0007: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 479.643608] usb 2-1: USB disconnect, device number 5
[ 480.085871] usb 2-1: new low-speed USB device number 6 using ohci-platform
[ 480.357440] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0008/input/input7
[ 480.391425] hid-generic 0003:1C4F:0034.0008: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 482.453888] usb 2-1: USB disconnect, device number 6
[ 482.905869] usb 2-1: new low-speed USB device number 7 using ohci-platform
[ 483.177447] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.0009/input/input8
[ 483.211636] hid-generic 0003:1C4F:0034.0009: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 485.273733] usb 2-1: USB disconnect, device number 7
[ 485.715872] usb 2-1: new low-speed USB device number 8 using ohci-platform
[ 485.987457] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.000A/input/input9
[ 486.020870] hid-generic 0003:1C4F:0034.000A: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 488.083544] usb 2-1: USB disconnect, device number 8
^C
# ^C
# [ 488.525872] usb 2-1: new low-speed USB device number 9 using ohci-platform
[ 488.797370] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.000B/input/input10
[ 488.830435] hid-generic 0003:1C4F:0034.000B: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 490.893194] usb 2-1: USB disconnect, device number 9
[ 491.335865] usb 2-1: new low-speed USB device number 10 using ohci-platform
[ 491.607436] input: SIGMACHIP Usb Mouse as /devices/platform/soc/1c1a400.usb/usb2/2-1/2-1:1.0/0003:1C4F:0034.000C/input/input11
[ 491.641516] hid-generic 0003:1C4F:0034.000C: input: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-1c1a400.usb-1/input0
[ 492.392643] usb 2-1: USB disconnect, device number 10离线