Re: Grabbing characters from a Symbol barcode scanner
Jiri Kosina <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 30 May 2007, Andy Stewart wrote: > I have a Symbol USB barcode scanner that appears to work with Linux. > If I bring up a Konsole window and give it focus, characters are typed > into that window as I scan barcodes. However, what I'd like to do is > grab those characters in a C program. I suppose that I should be able > to open the proper device and the characters would be available. Yes, just open the proper evdev interface in /dev/input/event<X> and read the events directly from there. See Documentation/input/input.txt, section 5. You can use ioctl(EVIOCGID) to obtain vendor id/product id corresponding to the given input device, so you can easily look up the event device corresponding to the device you are looking for. -- Jiri Kosina ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel