title: Sofware pwm as linux kernel module
body: <p>I need to implement PWM-module for linux kernel, it should be high resolution ( will be cool more than 10kHz on my 400MHz ARM cpu)
  Can anyone give me an advice, what I can use for that purpose?
  Kernel version is 2.6.28.9.
  Device hasn't a harware PWM driver.
  Now I use a kernel timer the frequency of which is set by CONFIG_HZ. Default value of this config is 100HZ, but it too little for me, maximum value is 4kHZ, but this is still insufficient</p>