Testing version of Antonio Galea soft_pwm driver (https://github.com/ant9000/soft_pwm) to generate step pulses for Daisy-2 stepper motor module (http://www.acmesystems.it/DAISY-2)

2012.10.31: Added a new sysfs parameter pulses that controls the number of repeats; use -1 to go on forever, 0 to stop immediately

##Related links

• DAISY-2 product description and examples
• Original soft_pwm git by Antonio Galea
• Old soft_pwm documentation. This doc will be moved on Acme Systems web site asap.
• Licence terms