Virtual serial port?

Started by bsrdjan, September 18, 2012, 02:20:35 pm

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bsrdjan

September 18, 2012, 02:20:35 pm Last Edit: September 18, 2012, 02:56:29 pm by bsrdjan
Hello,

I have FTDI USB device which on my Macbook is automatically recognized as /dev/tty.usbserial-AE01G6B7 and on Macbook I can access the device via virtual serial port, using CoolTerm for example.

When I connect the device to iMX233-MAXI running Arch Linux, a new USB device is created as /dev/usbdev1.x but no virtual serial port.

Can someone please advise how to configure serial port over USB on Arch/iMX233, for the FTDI UART target device?

The output of

dmesg | tail

usb 1-1.3: default language 0x0409
usb 1-1.3: udev 6, busnum 1, minor = 5
usb 1-1.3: New USB device found, idVendor=0403, idProduct=6001
usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1.3: Product: FT232R USB UART
usb 1-1.3: Manufacturer: FTDI
usb 1-1.3: SerialNumber: AE01G6B7
usb 1-1.3: usb_probe_device
usb 1-1.3: configuration #1 chosen from 1 choice
usb 1-1.3: adding 1-1.3:1.0 (config #1, interface 0)


lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 006: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC


usb-devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 1
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev=02.06
S:  Manufacturer=Linux 2.6.35-6-ARCH+ ehci_hcd
S:  Product=Freescale On-Chip EHCI Host Controller
S:  SerialNumber=fsl-ehci
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 3
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=02 MxPS=64 #Cfgs=  1
P:  Vendor=0424 ProdID=9512 Rev=02.00
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=2mA
I:  If#= 0 Alt= 1 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=02 Driver=hub

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  3 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0424 ProdID=ec00 Rev=02.00
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=2mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=ff Driver=smsc95xx

T:  Bus=01 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#=  6 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0403 ProdID=6001 Rev=06.00
S:  Manufacturer=FTDI
S:  Product=FT232R USB UART
S:  SerialNumber=AE01G6B7
C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=90mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)


The only device created in /dev

crw------- 1 root root 189, 6 Dec 31 19:48 /dev/usbdev1.7

Thanks and regards,
srdjan

davidjf2001