<html><body><div>Hi, all I got a 4G USB modem and would like to enable it with an ARM board. I had successfully setup a PPP connection via serial ttyUSBx by compiling option driver as a module. I got some further requirement to talk the modem the via QMI interface. So I tried the linux kernel backports. I had set the KLIB_BUILD variable to the source of the linux kernel of the ARM board. But later I got an error when compiling the driver. The kernel of the ARM board is linux 2.6.32. Below is the screen prints. I wonder if it is possible to backport the qmi driver to linux 2.6.32? wildc@wildc-HP-Pavilion-dv4-Notebook-PC:~/backports-3.14-1$ echo $KLIB_BUILD /home/wildc/ArDroine2.0_LinuxSource/kernel/ ARCH=arm CROSS_COMPILE=~/tool-chain/arm-2009q1/bin/arm-none-linux-gnueabi- make CC [M] /home/wildc/backports-3.14-1/compat/main.o In file included from /home/wildc/backports-3.14-1/compat/compat-2.6.34.h:8, from /home/wildc/backports-3.14-1/compat/main.c:5: /home/wildc/backports-3.14-1/backport-include/linux/mmc/sdio_func.h:21: error: redefinition of typedef 'mmc_pm_flag_t' include/linux/mmc/pm.h:25: error: previous declaration of 'mmc_pm_flag_t' was here make[6]: *** [/home/wildc/backports-3.14-1/compat/main.o] Error 1 make[5]: *** [/home/wildc/backports-3.14-1/compat] Error 2 make[4]: *** [_module_/home/wildc/backports-3.14-1] Error 2 make[3]: *** [modules] Error 2 make[2]: *** [modules] Error 2 make[1]: *** [modules] Error 2 Thank you in advance. BRs, Jiang Pin ( Richard )</div></body></html>