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Diffstat (limited to 'Documentation/usb/misc_usbsevseg.txt')
| -rw-r--r-- | Documentation/usb/misc_usbsevseg.txt | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/Documentation/usb/misc_usbsevseg.txt b/Documentation/usb/misc_usbsevseg.txt deleted file mode 100644 index 0f6be4f9930..00000000000 --- a/Documentation/usb/misc_usbsevseg.txt +++ /dev/null @@ -1,46 +0,0 @@ -USB 7-Segment Numeric Display -Manufactured by Delcom Engineering - -Device Information ------------------- -USB VENDOR_ID 0x0fc5 -USB PRODUCT_ID 0x1227 -Both the 6 character and 8 character displays have PRODUCT_ID, -and according to Delcom Engineering no queryable information -can be obtained from the device to tell them apart. - -Device Modes ------------- -By default, the driver assumes the display is only 6 characters -The mode for 6 characters is: - MSB 0x06; LSB 0x3f -For the 8 character display: - MSB 0x08; LSB 0xff -The device can accept "text" either in raw, hex, or ascii textmode. -raw controls each segment manually, -hex expects a value between 0-15 per character, -ascii expects a value between '0'-'9' and 'A'-'F'. -The default is ascii. - -Device Operation ----------------- -1. Turn on the device: - echo 1 > /sys/bus/usb/.../powered -2. Set the device's mode: - echo $mode_msb > /sys/bus/usb/.../mode_msb - echo $mode_lsb > /sys/bus/usb/.../mode_lsb -3. Set the textmode: - echo $textmode > /sys/bus/usb/.../textmode -4. set the text (for example): - echo "123ABC" > /sys/bus/usb/.../text (ascii) - echo "A1B2" > /sys/bus/usb/.../text (ascii) - echo -ne "\x01\x02\x03" > /sys/bus/usb/.../text (hex) -5. Set the decimal places. - The device has either 6 or 8 decimal points. - to set the nth decimal place calculate 10 ** n - and echo it in to /sys/bus/usb/.../decimals - To set multiple decimals points sum up each power. - For example, to set the 0th and 3rd decimal place - echo 1001 > /sys/bus/usb/.../decimals - - |