我有一根 5m 长的 USB 电缆,我想将其连接到嵌入式设备(linux debarm;内核 2.6)上的 USB 端口。该电缆有一个中继器,因此它实际上是两根电缆,中间有一个集线器。当我插入时,dmesg
显示:
usb 1-1: new full speed USB device using at91_ohci and address 23
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 4 ports detected
usb 1-1.4: new full speed USB device using at91_ohci and address 24
usb 1-1.4: device descriptor read/all, error -62
usb 1-1.4: new full speed USB device using at91_ohci and address 25
hub 1-1.4:1.0: USB hub found
hub 1-1.4:1.0: 4 ports detected
hub 1-1.4:1.0: hub_hub_status failed (err = -62)
hub 1-1.4:1.0: config failed, can't get hub status (err -62)
奇怪:当我插入普通的 USB 集线器并将 5 米电缆插入该集线器时,它会被识别并正常工作。
有谁知道什么可能导致这个错误?