mirror of
https://github.com/adulau/aha.git
synced 2024-12-30 12:46:17 +00:00
eb86be5424
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>
43 lines
No EOL
1.5 KiB
Text
43 lines
No EOL
1.5 KiB
Text
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. |