70 lines
2.2 KiB
Plaintext
70 lines
2.2 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config EXAMPLES_TOUCHSCREEN
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bool "Touchscreen example"
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default n
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---help---
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Enable the touchscreen example
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if EXAMPLES_TOUCHSCREEN
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config EXAMPLES_TOUCHSCREEN_MINOR
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int "Touchscreen minor device number"
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default 0
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---help---
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The minor device number. Minor=N corresponds to touchscreen device
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/dev/inputN. Note this value must with EXAMPLES_TOUCHSCREEN_DEVPATH.
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Default 0.
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config EXAMPLES_TOUCHSCREEN_DEVPATH
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string "Touchscreen device path"
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default "/dev/input0"
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---help---
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The path to the touchscreen device. This must be consistent with
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EXAMPLES_TOUCHSCREEN_MINOR. Default: "/dev/input0"
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config EXAMPLES_TOUCHSCREEN_NSAMPLES
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int "Number of samples"
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default 0
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depends on !NSH_BUILTIN_APPS
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---help---
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If NSH_BUILTIN_APPS is defined, then the number of touchscreen
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samples is provided on the command line and this value is ignored.
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Otherwise, this number of samples is collected and the program
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terminates. Default: Zero (Samples are collected indefinitely).
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config EXAMPLES_TOUCHSCREEN_MOUSE
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bool "Mouse interface"
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default n
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---help---
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The touchscreen test can also be configured to work with a mouse
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driver by setting this option.
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config EXAMPLES_TOUCHSCREEN_ARCHINIT
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bool "Architecture-specific initialization"
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default y
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depends on LIB_BOARDCTL
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select BOARDCTL_TSCTEST
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---help---
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By default, the touchscreen example will call boardctl() to
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register the touchscreen device before it attempts to open it.
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Similarly, it will call boardctl() to unregister the touchscreen
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device when it is finished.
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This works well for the typical touchscreen controller but there are
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other devices that cannot be initialized and uninitialized in this
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fashion. Consider a USB mouse, for example. The USB mouse will be
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registered when the mouse is connected and unregistered when the
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mouse is disconnected.
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So, in cases like this, there are two options: (1) provide dummy
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board_tsc_setup() and board_tsc_teardown() just to satisfy the
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linking requirements of boardctl() or, (2) de-select this option.
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If this option is de-selected, then the boardctl() will never be
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called.
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endif
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