Fix some typos in some documents
This commit is contained in:
Gregory Nutt
parent
2d58f3726d
commit
08ceeb1d5b
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@ -356,14 +356,14 @@
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<p>
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<sup>1</sup><small>NXMU and NXSU are interchangeable other than (1) certain start-up
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and initializeation APIs (as described below), and (2) timing. With NXSU, NX APIs
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and initialization APIs (as described below), and (2) timing. With NXSU, NX APIs
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execute immediately; with NXMU, NX APIs defer and serialize the operations and, hence,
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introduce different timing and potential race conditions that you would not experience
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with NXSU.</small>
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</p>
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<p><b>NXNULL?</b>
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At one time, I also envisoned a <i>NULL</i> front-end that did not support windowing
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At one time, I also envisioned a <i>NULL</i> front-end that did not support windowing
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at all but, rather, simply provided the entire framebuffer or LCD memory as one dumb window.
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This has the advantage that the same NX APIs can be used on the one dumb window as
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for the other NX windows.
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@ -765,7 +765,7 @@ int nxgl_splitline(FAR struct nxgl_vector_s *vector, FAR struct nxgl_trapezoid_s
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<p>
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<b>Description:</b>
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In the general case, a line with width can be represented as a parallelogram with a triangle at the top and bottom.
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Triangles and parallelograms are both degenerate versions of a trapeziod.
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Triangles and parallelograms are both degenerate versions of a trapezoid.
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This function breaks a wide line into triangles and trapezoids.
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This function also detects other degenerate cases:
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</p>
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@ -777,7 +777,7 @@ int nxgl_splitline(FAR struct nxgl_vector_s *vector, FAR struct nxgl_trapezoid_s
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If <code>x1 == x2</code> then the line is vertical and also better represented as a rectangle.
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</li>
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<li>
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If the width of the line is 1, then there are no triangles at the top and bottome
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If the width of the line is 1, then there are no triangles at the top and bottom
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(this may also be the case if the width is narrow and the line is near vertical).
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</li>
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<li>
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@ -1321,7 +1321,7 @@ int nx_eventnotify(NXHANDLE handle, int signo);
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the client must observe the rules for using <code>mq_notifiy()</code>:
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<ul>
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<li>
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Only one event is signaled. Upon receipt of the signal, if the client
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Only one event is signalled. Upon receipt of the signal, if the client
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wishes further notifications, it must call <code>nx_eventnotify()</code> again.
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</li>
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<li>
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@ -1425,7 +1425,7 @@ int nx_requestbkgd(NXHANDLE handle,
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<ul>
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<li>
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If you want to implement a windowless solution. The single screen
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can be used to creat a truly simple graphic environment. In this
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can be used to create a truly simple graphic environment. In this
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case, you should probably also de-select <code>CONFIG_NX_MULTIUSER</code> as well.
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</li>
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<li>
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@ -3430,7 +3430,7 @@ int nxf_convert_32bpp(FAR uint32_t *dest, uint16_t height,
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That interface may be driven by window callback functions so that keyboard input <i>only</i> goes to the top window.
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<dt><code>CONFIG__NXCONSOLE_KBDBUFSIZE</code>:
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<dd>If <code>CONFIG_NXCONSOLE_NXKBDIN</code> is enabled, then this value may be used to
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define the size of the per-window keyboar input buffer. Default: 16
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define the size of the per-window keyboard input buffer. Default: 16
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<dt><code>CONFIG_NXCONSOLE_NPOLLWAITERS</code>:
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<dd>The number of threads that can be waiting for read data available.
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Default: 4
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@ -3473,7 +3473,7 @@ int nxf_convert_32bpp(FAR uint32_t *dest, uint16_t height,
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<li>
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<p>
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Use the <i>bdf-converter</i> program to convert the BDF font to the NuttX font format.
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This will result in a C header file containing defintions.
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This will result in a C header file containing definitions.
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That header file should be installed at, for example, <code>graphics/nxfonts/nxfonts_myfont.h</code>.
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</p>
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</li>
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@ -723,7 +723,7 @@ int execv(FAR const char *path, FAR char *const argv[]);
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<p>
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Note the inefficiency when <code>execv()</code> or <code>execl()</code> is called in the normal, two-step process:
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(1) first call <code>vfork()</code> to create a new thread, then (2) call <code>execv()</code> or <code>execl()</code> to replace the new thread with a program from the file system.
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Since the new thread will be terminated by the <code>execv()</code> or <code>execl()</code> call, it really served no purpose other than to support Unix compatility.
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Since the new thread will be terminated by the <code>execv()</code> or <code>execl()</code> call, it really served no purpose other than to support Unix compatibility.
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</p>
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<p>
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The non-standard binfmt function <code>exec()</code> needs to have (1) a symbol table that provides the list of symbols exported by the base code, and (2) the number of symbols in that table.
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@ -1000,7 +1000,7 @@ int posix_spawn_file_actions_destroy(FAR posix_spawn_file_actions_t *file_action
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</pre></ul>
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<p>
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<b>Description:</b>
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The <code>posix_spawn_file_actions_destroy()</code> function destroys the object referenced by <code>file_actions</code> which was previously initializeed by <code>posix_spawn_file_actions_init()</code>, returning any resources obtained at the time of initialization to the system for subsequent reuse.
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The <code>posix_spawn_file_actions_destroy()</code> function destroys the object referenced by <code>file_actions</code> which was previously initialized by <code>posix_spawn_file_actions_init()</code>, returning any resources obtained at the time of initialization to the system for subsequent reuse.
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A <code>posix_spawn_file_actions_t</code> may be reinitialized after having been destroyed, but must not be reused after destruction, unless it has been reinitialized.
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</p>
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<p>
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@ -1931,8 +1931,8 @@ interface of the same name.
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<p>
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<b>Description:</b>
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<code>sched_rr_get_interval()</code> writes the timeslice interval
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for task identified by <code>pid</code> into the timespec structure
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<code>sched_rr_get_interval()</code> writes the timeslice interval
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for task identified by <code>pid</code> into the timespec structure
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pointed to by <code>interval</code>. If pid is zero, the timeslice
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for the calling process is written into 'interval. The
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identified process should be running under the SCHED_RR
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@ -94,7 +94,7 @@ config APPS_DIR
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Identifies the directory that builds the
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application to link with NuttX. Default: ../apps This symbol must be assigned
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to the path to the application build directory *relative* to
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the NuttX top build direcory. If you had an application
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the NuttX top build directory. If you had an application
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directory and the NuttX directory each in separate directory
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trees like this:
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@ -118,7 +118,7 @@ config APPS_DIR
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2)clean. Do whatever is appropriate to clean the application
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directories for a fresh build.
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3)distclean. Clean everthing -- auto-generated files, symbolic
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3)distclean. Clean everything -- auto-generated files, symbolic
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links etc. -- so that the directory contents are the same as
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the contents in your configuration management system.
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This is only done when you change the NuttX configuration.
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@ -145,7 +145,7 @@ config BUILD_2PASS
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library (archive) (some modification to this Makefile would be required if
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PASS1_TARGET generates an archive). Pass 1 1ncremental (relative) link
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objects should be put into the processor-specific source directory (where other
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link objects will be created). If the pass1 obect is an archive, it could
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link objects will be created). If the pass1 object is an archive, it could
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go anywhere.
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if BUILD_2PASS
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@ -277,7 +277,7 @@ config ARCH_FLOAT_H
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---help---
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The float.h header file defines the properties of your floating
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point implementation. It would always be best to use your
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toolchain's float.h header file but if none is avaiable, a default
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toolchain's float.h header file but if none is available, a default
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float.h header file will provided if this option is selected. However
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there is no assurance that the settings in this float.h are actually
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correct for your platform!
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@ -329,7 +329,7 @@ config DEBUG_VERBOSE
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bool "Enable Debug Verbose Output"
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default n
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---help---
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Enables verbose debug output (assuming debug featurses are enabled).
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Enables verbose debug output (assuming debug features are enabled).
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As a general rule, when DEBUG is enabled only errors will be
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reported in the debug SYSLOG output. But if you also enable
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DEBUG_VERBOSE, then very chatty (and often annoying) output will be
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@ -154,7 +154,7 @@ config ARCH_IRQPRIO
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NOTE: The use of interrupt priorities implies that you also have
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support for nested interrupts. Most architectures do not support
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nesting of interupts or, if they do, they only supported nested
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nesting of interrupts or, if they do, they only supported nested
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interrupts with certain configuration options. So this selection
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should be used with caution.
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@ -212,7 +212,7 @@ config ARCH_CALIBRATION
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---help---
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Enables some built in instrumentation that causes a 100 second delay
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during boot-up. This 100 second delay serves no purpose other than it
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allows you to calibratre BOARD_LOOPSPERMSEC. You simply use a stop
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allows you to calibrate BOARD_LOOPSPERMSEC. You simply use a stop
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watch to measure the actual delay then adjust BOARD_LOOPSPERMSEC until
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the actual delay is 100 seconds.
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@ -387,7 +387,7 @@ config RAM_START
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help
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The physical start address of primary installed RAM. "Primary" RAM
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refers to the RAM that you link program code into. If program code
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does not excecute out of RAM but from FLASH, then you may designate
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does not execute out of RAM but from FLASH, then you may designate
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any block of RAM as "primary."
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config RAM_VSTART
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@ -397,7 +397,7 @@ config RAM_VSTART
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help
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The virtual start address of installed primary RAM. "Primary" RAM
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refers to the RAM that you link program code into. If program code
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does not excecute out of RAM but from FLASH, then you may designate
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does not execute out of RAM but from FLASH, then you may designate
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any block of RAM as "primary."
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config RAM_SIZE
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@ -406,7 +406,7 @@ config RAM_SIZE
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help
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The size in bytes of the installed primary RAM. "Primary" RAM
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refers to the RAM that you link program code into. If program code
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does not excecute out of RAM but from FLASH, then you may designate
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does not execute out of RAM but from FLASH, then you may designate
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any block of RAM as "primary."
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if BOOT_RUNFROMFLASH && ARCH_HAVE_MMU
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