どうやっても /dev/ttyACM0 が上がって来ないので、Ubuntu 18.04 に挿したところ、
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May 7 20:48:47 greyhound kernel: [ 1316.751956] usb 3-12: device not accepting address 19, error -71 May 7 20:48:47 greyhound kernel: [ 1316.879997] usb 3-12: new full-speed USB device number 20 using xhci_hcd May 7 20:48:47 greyhound kernel: [ 1316.880230] usb 3-12: Device not responding to setup address. May 7 20:48:47 greyhound kernel: [ 1317.088138] usb 3-12: Device not responding to setup address. May 7 20:48:47 greyhound kernel: [ 1317.295964] usb 3-12: device not accepting address 20, error -71 May 7 20:48:47 greyhound kernel: [ 1317.296034] usb usb3-port12: unable to enumerate USB device |
デバイス応答せずと言われた。
とりあえず、VK-172をポチったけど、多分延長コードで本体から離さないと感度悪いだろうなあ。