px4-firmware/nuttx/drivers/usbhost/Kconfig

#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

config USBHOST_NPREALLOC
	int "Number of pre-allocated class instances"
	default 4
	---help---
		Number of pre-allocated class instances

config USBHOST_BULK_DISABLE
	bool "Disable bulk endpoint support"
	default n
	---help---
		On some architectures, selecting this setting will reduce driver size
		by disabling bulk endpoint support

config USBHOST_INT_DISABLE
	bool "Disable interrupt endpoint support"
	default n
	---help---
		On some architectures, selecting this setting will reduce driver size
		by disabling interrupt endpoint support

config USBHOST_ISOC_DISABLE
	bool "Disable isochronous endpoint support"
	default n
	---help---
		On some architectures, selecting this setting will reduce driver size
		by disabling isochronous endpoint support

config USBHOST_MSC
	bool "Mass Storage Class Support"
	default n
	depends on !BULK_DISABLE
	---help---
		Enable support for the keyboard class driver.  This also depends on
		NFILE_DESCRIPTORS > 0 && SCHED_WORKQUEUE=y

config USBHOST_HIDKBD
	bool "HID Keyboard Class Support"
	default n
	depends on !INT_DISABLE
	---help---
		Enable support for the keyboard class driver.  This also depends on
		SCHED_WORKQUEUE && !DISABLE_SIGNALS

if  USBHOST_HIDKBD
config HIDKBD_POLLUSEC
	int "Keyboard Poll Rate (MSEC)"
	default 100000
	---help---
		Device poll rate in microseconds. Default: 100,000 microseconds.

config HIDKBD_DEFPRIO
	int "Polling Thread Priority"
	default 50
	---help---
		Priority of the polling thread.  Default: 50.

config HIDKBD_STACKSIZE
	int "Polling thread stack size"
	default 1024
	---help---
		Stack size for polling thread.  Default: 1024

config HIDKBD_BUFSIZE
	int "Scancode Buffer Size"
	default 64
	---help---
		Scancode buffer size.  Default: 64.

config HIDKBD_NPOLLWAITERS
	int "Max Number of Waiters for Poll Event"
	default 2
	depends on !DISABLE_POLL
	---help---
		If the poll() method is enabled, this defines the maximum number
		of threads that can be waiting for keyboard events.  Default: 2.

config HIDKBD_RAWSCANCODES
	bool "Use Raw Scan Codes"
	default n
	---help---
		If set to y no conversions will be made on the raw keyboard scan
		codes.  This option is useful during testing. Default: ASCII conversion.

config HIDKBD_ENCODED
	bool "Enocode Special Keys"
	default n
	depends on !HIDKBD_RAWSCANCODES
	---help---
		Encode special key press events in the user buffer.  In this case,
		the use end must decode the encoded special key values using the
		interfaces defined in include/nuttx/input/kbd_codec.h.  These
		special keys include such things as up/down arrows, home and end
		keys, etc.  If this not defined, only 7-bit print-able and control
		ASCII characters will be provided to the user.

config HIDKBD_ALLSCANCODES
	bool "Use All Scancodes"
	default n
	---help---
		If set to y all 231 possible scancodes will be converted to
		something.  Default:  104 key US keyboard.

config HIDKBD_NODEBOUNCE
	bool "Disable Debounce"
	default n
	---help---
		If set to y normal debouncing is disabled.  Default: 
		Debounce enabled (No repeat keys).
endif