On Thu, May 29, 2014 at 03:35:37PM +0530, Satish Patel wrote:

quoted

quoted

+enum usim_card_mode {
+       USIM_CARD_MODE_ASYNC = 0,       /* asynchronous mode */
+       USIM_CARD_MODE_SYNC_TYPE1,      /* synchronous mode: Type 1 */
+       USIM_CARD_MODE_SYNC_TYPE2,      /* synchronous mode: Type 2 */
+       USIM_CARD_MODE_SYNC_OTHER,      /* Any other synchronous type */
+};
+struct usim_data {
+       int slot;
+       int rxexplen;
+       int txlen;
+       unsigned char apdu[256];
+};

You need to use the proper variable types for a structure that is going
to cross the user/kernel boundry in an ioctl :(