USB: Added driver for a Delcom USB 7-segment LED Display

Added basic support for a Delcom USB 7-segment LED Display

Signed-off by: Harrison Metzger <harrisonmetz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 43 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg b/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg
new file mode 100644
index 000000000000..cb830df8777c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg
@@ -0,0 +1,43 @@
+Where:          /sys/bus/usb/.../powered
+Date:           August 2008
+Kernel Version: 2.6.26
+Contact:        Harrison Metzger <harrisonmetz@gmail.com>
+Description:    Controls whether the device's display will powered.
+                A value of 0 is off and a non-zero value is on.
+
+Where:          /sys/bus/usb/.../mode_msb
+Where:          /sys/bus/usb/.../mode_lsb
+Date:           August 2008
+Kernel Version: 2.6.26
+Contact:        Harrison Metzger <harrisonmetz@gmail.com>
+Description:    Controls the devices display mode.
+                For a 6 character display the values are
+                        MSB 0x06; LSB 0x3F, and
+                for an 8 character display the values are
+                        MSB 0x08; LSB 0xFF.
+
+Where:          /sys/bus/usb/.../textmode
+Date:           August 2008
+Kernel Version: 2.6.26
+Contact:        Harrison Metzger <harrisonmetz@gmail.com>
+Description:    Controls the way the device interprets its text buffer.
+                raw:    each character controls its segment manually
+                hex:    each character is between 0-15
+                ascii:  each character is between '0'-'9' and 'A'-'F'.
+
+Where:          /sys/bus/usb/.../text
+Date:           August 2008
+Kernel Version: 2.6.26
+Contact:        Harrison Metzger <harrisonmetz@gmail.com>
+Description:    The text (or data) for the device to display
+
+Where:          /sys/bus/usb/.../decimals
+Date:           August 2008
+Kernel Version: 2.6.26
+Contact:        Harrison Metzger <harrisonmetz@gmail.com>
+Description:    Controls the decimal places on the device.
+                To set the nth decimal place, give this field
+                the value of 10 ** n. Assume this field has
+                the value k and has 1 or more decimal places set,
+                to set the mth place (where m is not already set),
+                change this fields value to k + 10 ** m.
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