I have a Symbol USB barcode scanner that is in CDC mode (which shows up as COM1 on my windows pc). It isnt showing up in dmesg when I plug it in with friendlyarm linux running. What do I need to do to get it to be detected?
possibly check in the kernel driver configuration for usb devices and see if your scanner is supported? It might be also be a module and you need to modprobe it? Lastly, google your scanner model and linux and see what comes up.
I have rebuilt zImage and activated CONFIG_USB_CONFIG_USB_CDC_COMPOSITE and found that CONFIG_USB_SERIAL_SYMBOL=y and CONFIG_USB_SERIAL_MOTOROLA=y are both set. Calling lsusb shows the Symbol Technologies device on Bus 1:Device 4 05e0:1701 but nothing shows up for /dev/ttyUSB. I am using a Symbol SE3307 barcode reader.
I figured out that their isnt a driver specifically for this barcode reader. I updated the existing symbol driver to also register for my device except that ends up causing a "Error - the proper endpoints were not found!" to be thrown. I am hoping that my contact at Motorola can get me the correct driver file.
Setting CONFIG_USB_ACM and CONFIG_USE_CDC_COMPOSITE to "y" then recompiling the kernel seems to have worked as now I see it show up as /dev/ttyACM0.
Update: That did the trick since my application can now talk to the Symbol barcode scanner after creating a soft link as ttyS8.
Check whether this post is useful: http://www.vbforums.com/showthread.php?522768-Barcode-scanner-Detecting-... http://www.barcodelib.com/net_barcode_reader/main.html