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How to read USB->Serial data on ARM ?

Eduardo Gorio
Prodigy 215 points

Hello everybody,

Could anyone help me about how to read data over Serial (using USB->Serial conversor). 

When i connect the cable on my device i got this message on dmesg command

root@csi:~# usb 1-2.2: new full speed USB device using ehci-omap and address 8
usb 1-2.2: New USB device found, idVendor=067b, idProduct=2303
usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-2.2: Product: USB-Serial Controller
usb 1-2.2: Manufacturer: Prolific Technology Inc.

And when i type lsusb i got it.

root@csi:~# lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 006: ID 1a40:0101
Bus 001 Device 008: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 002 Device 001: ID 1d6b:0002

Thanks