Lines Matching +full:software +full:- +full:locked

1 .\"-
2 .\" SPDX-License-Identifier: BSD-2-Clause
17 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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72 EIA RS-232C (CCITT V.24) serial communications interface.
112 It contains the bus attachments and the low-level interrupt handler.
122 design or software setup.
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195 Invert the pulse (RS-232 logic low = ASSERT, high = CLEAR).
216 RFC 2783 defines an ASSERT event as a higher-voltage line level, and a CLEAR
217 event as a lower-voltage line level, in the context of the RS-232 protocol.
218 The modem control signals on a TTL-level connection are typically
219 inverted from the RS-232 levels.
220 For example, carrier presence is indicated by a high signal on an RS-232
223 TTL and RS-232 line levels in most hardware designs.
224 Generally speaking, a connection to a DB-9 style connector is an RS-232
226 A connection to header pins or an edge-connector on an embedded board
231 driver also supports an initial-state and a lock-state control
234 from those of the corresponding initial-state device
238 in the normal way on the initial-state devices to program
245 on the lock-state device.
247 may be locked by setting the corresponding value in the lock-state
251 on the initial-state device and
253 on the lock-state device.
261 locked to prevent buggy programs from changing them.
262 E.g., CRTSCTS should be locked on for devices that support
265 CLOCAL should be locked on for devices that do not support carrier.
266 HUPCL may be locked off if you do not
269 if something is locked to the wrong state, and things should not
270 be locked for devices that support more than one setting.
271 The CLOCAL flag on callin ports should be locked off for logins
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286 Enable the so-called
289 For NS 16550-compatible devices, this will use heuristics to ensure that the
291 DesignWare-based UARTs need this due to a design flaw in the UART.
304 driver to not program the baud rate divisor and use the hardware as-is.
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328 Specifies the physical address of a memory-mapped UART.
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363 corresponding callin initial-state and lock-state devices
369 corresponding callout initial-state and lock-state devices