Greetings All, I am wondering if in the function,ni_stc_dma_channel_select_bitfield the line: return 1 << channel; is guaranteed to be below the threshold that guarantees us to not overflow on a unsigned 32 integer due to bit wise shifting to the left. Thanks Nick _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel