+config CAN_CALC_BITTIMING
+ tristate "CAN bit-timing calculation"
+ depends on CAN_DEV
+ default Y
+ ---help---
+ If enabled, CAN bit-timing parameters will be calculated for the
+ bit-rate specified via SYSFS file "can_bitrate" when the device
+ gets started. This works fine for the most common CAN controllers
+ with standard bit-rates but may fail for exotic bit-rates or CAN
+ source clock frequencies. Disabling saves some space, but then the
+ bit-timing parameters must be specified directly using the SYSFS
+ files "tq, prop_seg, phase_seg1, phase_seg2 and sjw".
+ If unsure, say Y.
+