Apparatus and method for bios interface to features in multiple adapter cards in one operation using registers with bits distributed across the adapter cards
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United States of America Patent
Stats
-
Jan 2, 1996
Issued Date -
N/A
app pub date -
May 2, 1994
filing date -
May 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Control of LCD backlighting, contrast, and video port selection with BIOS. Calls made from application programs to BIOS result in BIOS read and write operations to a distributed register in video adapters. The use of the register allows BIOS to simultaneously obtain information from multiple displays, as well as simultaneously execute hardware functions such as backlight control. In addition, use of BIOS simplifies programming of hardware related tasks such as backlight control to improve mean time between failure (MTBF) of LCD displays.
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