What: /sys/devices/platform/kim/dev_name Date: January 2010 KernelVersion: 2.6.38 Contact: "Pavan Savoy" <pavan_savoy@ti.com> Description: Name of the UART device at which the WL128x chip is connected. example: "/dev/ttyS0". The device name flows down to architecture specific board initialization file from the ATAGS bootloader firmware. The name exposed is read from the user-space daemon and opens the device when install is requested. What: /sys/devices/platform/kim/baud_rate Date: January 2010 KernelVersion: 2.6.38 Contact: "Pavan Savoy" <pavan_savoy@ti.com> Description: The maximum reliable baud-rate the host can support. Different platforms tend to have different high-speed UART configurations, so the baud-rate needs to be set locally and also sent across to the WL128x via a HCI-VS command. The entry is read and made use by the user-space daemon when the ldisc install is requested. What: /sys/devices/platform/kim/flow_cntrl Date: January 2010 KernelVersion: 2.6.38 Contact: "Pavan Savoy" <pavan_savoy@ti.com> Description: The WL128x makes use of flow control mechanism, and this entry most often should be 1, the host's UART is required to have the capability of flow-control, or else this entry can be made use of for exceptions. What: /sys/devices/platform/kim/install Date: January 2010 KernelVersion: 2.6.38 Contact: "Pavan Savoy" <pavan_savoy@ti.com> Description: When one of the protocols Bluetooth, FM or GPS wants to make use of the shared UART transport, it registers to the shared transport driver, which will signal the user-space for opening, configuring baud and install line discipline via this sysfs entry. This entry would be polled upon by the user-space daemon managing the UART, and is notified about the change by the sysfs_notify. The value would be '1' when UART needs to be opened/ldisc installed, and would be '0' when UART is no more required and needs to be closed.