Hello list, I am trying to communicate with a Logitech IO Digital Pen using libusb. I get a protocol error whenever I use the bulk transfer functions or usb_control_msg.
code: memcpy(buf = "\x09\x02\x37\x00\x02\x01\x00\xC0\x4B", 0x9); result = usb_control_msg( digipen, 0x6, USB_TYPE_STANDARD, 0x200, 0x0, buf, 0x9, 10000); output: error sending control message: Protocol error I am trying to get the configuration here. Could someone please explain to me what exactly a protocol error in this context means and what I am doing wrong? any help is much appreciated, Rade ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
