1 What: /sys/devices/platform/kim/dev_name 2 Date: January 2010 3 KernelVersion: 2.6.38 4 Contact: "Pavan Savoy" <pavan_savoy@ti.com> 5 Description: 6 Name of the UART device at which the WL128x chip 7 is connected. example: "/dev/ttyS0". 8 9 The device name flows down to architecture specific board 10 initialization file from the ATAGS bootloader 11 firmware. The name exposed is read from the user-space 12 daemon and opens the device when install is requested. 13 14 What: /sys/devices/platform/kim/baud_rate 15 Date: January 2010 16 KernelVersion: 2.6.38 17 Contact: "Pavan Savoy" <pavan_savoy@ti.com> 18 Description: 19 The maximum reliable baud-rate the host can support. 20 Different platforms tend to have different high-speed 21 UART configurations, so the baud-rate needs to be set 22 locally and also sent across to the WL128x via a HCI-VS 23 command. The entry is read and made use by the user-space 24 daemon when the ldisc install is requested. 25 26 What: /sys/devices/platform/kim/flow_cntrl 27 Date: January 2010 28 KernelVersion: 2.6.38 29 Contact: "Pavan Savoy" <pavan_savoy@ti.com> 30 Description: 31 The WL128x makes use of flow control mechanism, and this 32 entry most often should be 1, the host's UART is required 33 to have the capability of flow-control, or else this 34 entry can be made use of for exceptions. 35 36 What: /sys/devices/platform/kim/install 37 Date: January 2010 38 KernelVersion: 2.6.38 39 Contact: "Pavan Savoy" <pavan_savoy@ti.com> 40 Description: 41 When one of the protocols Bluetooth, FM or GPS wants to make 42 use of the shared UART transport, it registers to the shared 43 transport driver, which will signal the user-space for opening, 44 configuring baud and install line discipline via this sysfs 45 entry. This entry would be polled upon by the user-space 46 daemon managing the UART, and is notified about the change 47 by the sysfs_notify. The value would be '1' when UART needs 48 to be opened/ldisc installed, and would be '0' when UART 49 is no more required and needs to be closed.
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