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+What: /sys/bus/umc/
+Date: July 2008
+KernelVersion: 2.6.27
+Contact: David Vrabel <david.vrabel@csr.com>
+Description:
+ The Wireless Host Controller Interface (WHCI)
+ specification describes a PCI-based device with
+ multiple capabilities; the UWB Multi-interface
+ Controller (UMC).
+
+ The umc bus presents each of the individual
+ capabilties as a device.
+
+What: /sys/bus/umc/devices/.../capability_id
+Date: July 2008
+KernelVersion: 2.6.27
+Contact: David Vrabel <david.vrabel@csr.com>
+Description:
+ The ID of this capability, with 0 being the radio
+ controller capability.
+
+What: /sys/bus/umc/devices/.../version
+Date: July 2008
+KernelVersion: 2.6.27
+Contact: David Vrabel <david.vrabel@csr.com>
+Description:
+ The specification version this capability's hardware
+ interface complies with.