우리는 Linux 커널과 함께 아주 오래된 버전을 CentOS 6설치했습니다 .CheckWay Sherman2.6.32-696.1.1.el6.i686
우리는 외부 usbserial을 통합하려고 합니다.저울UART장치이지만 설정 속도 에 오류가 있습니다 .
stty -f /dev/ttyUSB0 9600
error unable to perform operation
다음은 다음에서 보낸 관련 메시지입니다 dmesg.
cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
cp210x 2-3:1.0: device disconnected
usb 2-4: new full speed USB device number 7 using xhci_hcd
usb 2-4: New USB device found, idVendor=10c4, idProduct=ea60
usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-4: Product: CP2102N USB to UART Bridge Controller
usb 2-4: Manufacturer: Silicon Labs
usb 2-4: SerialNumber: 52add1d6cbd5eb11ac3ffdf743d319e3
usb 2-4: configuration #1 chosen from 1 choice
cp210x 2-4:1.0: cp210x converter detected
usb 2-4: reset full speed USB device number 7 using xhci_hcd
xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 6.
usb 2-4: reset full speed USB device number 7 using xhci_hcd
xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 6.
usb 2-4: reset full speed USB device number 7 using xhci_hcd
xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep c1b5d540
xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep c1b5d56c
usb 2-4: cp210x converter now attached to ttyUSB0
udev구성:
[root@pos_test_disp ~]# grep -r "usb" /etc/modprobe.d/
/etc/modprobe.d/dist.conf:alias char-major-188-* usbserial
/etc/modprobe.d/dist.conf:alias usbdevfs usbcore
/etc/modprobe.d/dist.conf:install usbmouse /sbin/modprobe --first-time --ignore-install usbmouse && { /sbin/modprobe hid; /bin/true; }
/etc/modprobe.d/dist.conf:remove usbmouse { /sbin/modprobe -r hid; } ; /sbin/modprobe -r --first-time --ignore-remove usbmouse
/etc/modprobe.d/dist.conf:alias usb-uhci uhci-hcd
/etc/modprobe.d/dist.conf:alias usb-ohci ohci-hcd
[root@pos_test_disp ~]# grep -r "cp210x" /etc/modprobe.d/
lsusb:
[root@pos_test_disp ~]# lsusb -t
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/11p, 480M
|__ Port 2: Dev 2, If 0, Class=HID, Driver=usbhid, 12M
|__ Port 2: Dev 2, If 1, Class=HID, Driver=usbhid, 12M
|__ Port 4: Dev 7, If 0, Class=vend., Driver=cp210x, 12M
|__ Port 6: Dev 4, If 0, Class=hub, Driver=hub/4p, 480M
|__ Port 3: Dev 5, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 4: Dev 6, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 4: Dev 6, If 1, Class=HID, Driver=usbhid, 1.5M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/2p, 480M
|__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/8p, 480M
lsmod:
[root@pos_test_disp ~]# lsmod | head
Module Size Used by
cp210x 11320 1
usbserial 30508 3 cp210x
장치를 다른 포트에 연결하고 시스템을 재부팅하는 등의 작업을 시도했습니다.
드라이버를 다시 컴파일하고 거기에 디버그 로깅을 넣어야 합니까?
그렇다면 cp210x또는 를 파헤쳐 봐야 합니까 xhci_hcd?
아니면 알려진 해결책이 있을까요?
추신: OWR 하드웨어를 업그레이드해야 한다는 것을 알고 있지만 불행히도 그런 가능성은 없습니다.
업데이트
시스템을 커널로 업데이트했지만 2.6.32-696.30.1.el6.centos.plus.i686문제 yum update는 여전히 남아 있습니다.