2253

Cross-compiling Linux driver for ARM

From sdk_2253_x.y.z_linux/driver:

 PATH=<path-to-cross-compiler/bin>:$PATH \
 make -C <path-to-target-kernel-directory> SUBDIRS=`pwd` \
 CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm modules

Copy the s2253.ko file to the target's /lib/modules/`uname -r`/extra directory, and run "depmod -a".

For the demo application, modify the Makefile path to the cross compiler, then do "make demo_arm".

Connecting to USB 3.0 ports on Linux

When connecting the board to a port on a USB 3.0 (SuperSpeed) hub, if the device does not work, check the dmesg log for these messages:

 [  378.352045] usb 9-1: new high-speed USB device number 19 using xhci_hcd
 [  378.369004] usb 9-1: device descriptor read/8, error -75
 [  378.488958] usb 9-1: device descriptor read/8, error -75

Reconnect the device to a USB 2.0 port, or contact support@sensoray.com for RMA. Boards manufactured after April 2013 have corrected this issue. (Windows is not affected.)