What: /sys/class/bsr/bsr*/bsr_size Date: Jul, 2008 KernelVersion: 2.6.27 Contact: Arnd Bergmann , Greg Kroah-Hartman Description: (RO) Size of the barrier-synchronization register (BSR) register in bytes. What: /sys/class/bsr/bsr*/bsr_length Date: Jul, 2008 KernelVersion: 2.6.27 Contact: Arnd Bergmann , Greg Kroah-Hartman Description: (RO) The length of memory region that can be mapped in bytes. What: /sys/class/bsr/bsr*/bsr_stride Date: Jul, 2008 KernelVersion: 2.6.27 Contact: Arnd Bergmann , Greg Kroah-Hartman Description: (RO) The stride or the interval at which the allocated BSR bytes repeat within the mapping.