esp8266 microUSB 연결

flash 버튼 누른채로 usb 연결하면 아래와 같이 먼가 나오는데

기존의 cp210x를 죽여버리고 ch341은 연결하는 느낌이다.

 

$ lsusb -t -v     |__ Port 3: Dev 59, If 0, Class=Vendor Specific Class, Driver=, 12M         ID 1a86:7523 QinHeng Electronics CH340 serial converter

 

$ sudo dmesg [1473116.242277] usb 1-3: new full-speed USB device number 59 using xhci_hcd [1473116.391455] usb 1-3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.54 [1473116.391473] usb 1-3: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [1473116.391479] usb 1-3: Product: USB2.0-Ser! [1473116.431662] usbcore: registered new interface driver ch341 [1473116.431675] usbserial: USB Serial support registered for ch341-uart [1473116.431693] ch341 1-3:1.0: ch341-uart converter detected [1473116.432077] ch341-uart ttyUSB2: break control not supported, using simulated break [1473116.432166] usb 1-3: ch341-uart converter now attached to ttyUSB2 [1473116.503795] input: PC Speaker as /devices/platform/pcspkr/input/input82 [1473117.030963] input: BRLTTY 6.4 Linux Screen Driver Keyboard as /devices/virtual/input/input83 [1473117.156864] usb 1-3: usbfs: interface 0 claimed by ch341 while 'brltty' sets config #1 [1473117.157672] ch341-uart ttyUSB2: ch341-uart converter now disconnected from ttyUSB2 [1473117.157738] ch341 1-3:1.0: device disconnected [1473117.174250] usb 1-2.4.2: usbfs: interface 0 claimed by cp210x while 'brltty' sets config #1 [1473117.178085] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1 [1473117.178151] cp210x 1-2.4.2:1.0: device disconnected