115200bps 로 설정해서 reset 누르니 아래와 같이 먼가 나오긴 한데..
pcb 뒷편에는 CH340G 드라이버 설치하고 9600bps로 연결하라고 하는데 머가 맞는걸까?
봉투에서 뜯은녀석이라 다른 프로그램이 들어있는건 아닐텐데..
�brlrl ready |
dmseg로 확인하면 아래와 같이 인식된다. CH341? CH340G 라고 한거 같은디..
normal boot |
[ 528.742541] usb 2-1.1: new full-speed USB device number 11 using ehci-pci [ 528.851812] usb 2-1.1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.54 [ 528.851831] usb 2-1.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 528.851838] usb 2-1.1: Product: USB2.0-Ser! [ 528.852466] ch341 2-1.1:1.0: ch341-uart converter detected [ 528.854364] ch341-uart ttyUSB0: break control not supported, using simulated break [ 528.854604] usb 2-1.1: ch341-uart converter now attached to ttyUSB0 |
flash 버튼 누르고 부팅하면 아래와 같이 조금더 나온다.
그런데 BRLTTY가 머하는걸까? USB 플래시 처럼인식은 안되나보네
flash 버튼 누르고 boot 메시지 |
[ 455.103387] usb 2-1.1: new full-speed USB device number 10 using ehci-pci [ 455.213032] usb 2-1.1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.54 [ 455.213052] usb 2-1.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 455.213059] usb 2-1.1: Product: USB2.0-Ser! [ 455.213892] ch341 2-1.1:1.0: ch341-uart converter detected [ 455.214821] ch341-uart ttyUSB0: break control not supported, using simulated break [ 455.215109] usb 2-1.1: ch341-uart converter now attached to ttyUSB0 [ 455.792404] input: BRLTTY 6.4 Linux Screen Driver Keyboard as /devices/virtual/input/input27 [ 455.880634] usb 2-1.1: usbfs: interface 0 claimed by ch341 while 'brltty' sets config #1 [ 455.881356] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0 [ 455.881387] ch341 2-1.1:1.0: device disconnected |
일반 권한 |
$ brltty BRLTTY 6.4 rev BRLTTY-6.4 [https://brltty.app/] brltty: can't isolate namespaces brltty: executing as the invoking user: falinux brltty: can't set supplementary groups brltty: group not joined: 0(root) brltty: group not joined: 5(tty) brltty: group not joined: 29(audio) brltty: group not joined: 107(input) brltty: group not joined: 133(pulse-access) brltty: required capability not granted: cap_sys_admin (for injecting input characters typed on a braille device) brltty: required capability not granted: cap_sys_tty_config (for playing alert tunes via the built-in PC speaker) brltty: required capability not granted: cap_mknod (for creating needed but missing special device files) |
root 권한 |
$ sudo brltty BRLTTY 6.4 rev BRLTTY-6.4 [https://brltty.app/] brltty: executing as the invoking user: root |
두번 실행하니 먼가 5초에 한번 주기적으로 뜬다. 멀까?
(그냥 프롬프트가 뜨길래 먼가했는데 백그라운드로 brltty가 실행되고 있어서 뜨는 메시지 였음)
[450328.072373] input: BRLTTY 6.4 Linux Screen Driver Keyboard as /devices/virtual/input/input36 [450351.379981] input: BRLTTY 6.4 Linux Screen Driver Keyboard as /devices/virtual/input/input37 [450351.389760] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450356.391459] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450361.393130] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450366.397596] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450371.400305] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450376.389840] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450381.395540] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450386.401519] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450391.397008] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450396.389537] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450401.402252] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 [450406.395525] usb 1-2.4.2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1 |
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