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This example drives the APA102 LED-strip character driver: it opens /dev/leddrv0 and writes an array of struct apa102_ledstrip_s from <nuttx/leds/apa102.h>, which is provided by drivers/leds/apa102.c (CONFIG_LEDS_APA102). CONFIG_LCD_APA102 selects an unrelated driver, drivers/lcd/apa102.c, which drives an APA102 matrix as a framebuffer LCD and registers no /dev/leddrvN node at all. The wrong dependency makes the example unusable either way: with the LED strip driver enabled the example cannot be selected in menuconfig, and with CONFIG_LCD_APA102 the dependency is met but the driver the example needs is absent, so it fails at open(). Signed-off-by: Ricard Rosson <ricard@groundbits.com> Assisted-by: Claude Opus 5 (Claude Code)
22 lines
475 B
Text
22 lines
475 B
Text
#
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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_APA102
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tristate "APA102 LED Strip example"
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default n
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depends on LEDS_APA102
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---help---
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Enable the APA102 example
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if EXAMPLES_APA102
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config EXAMPLES_APA102_PROGNAME
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string "Program name"
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default "apa102"
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---help---
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This is the name of the program that will be used when the NSH ELF
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program is installed.
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endif
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