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|
From 8d559133434730d0a1c5f661e6cdaca27f6ee184 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 8 Feb 2016 09:46:33 +0000
Subject: [PATCH] BCM270X_DT: Adjust overlay README formatting
---
arch/arm/boot/dts/overlays/README | 414 +++++++++++++++++++-------------------
1 file changed, 207 insertions(+), 207 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -83,58 +83,58 @@ Name: <The base DTB>
Info: Configures the base Raspberry Pi hardware
Load: <loaded automatically>
Params:
- audio Set to "on" to enable the onboard ALSA audio
- interface (default "off")
+ audio Set to "on" to enable the onboard ALSA audio
+ interface (default "off")
- i2c_arm Set to "on" to enable the ARM's i2c interface
- (default "off")
+ i2c_arm Set to "on" to enable the ARM's i2c interface
+ (default "off")
- i2c_vc Set to "on" to enable the i2c interface
- usually reserved for the VideoCore processor
- (default "off")
+ i2c_vc Set to "on" to enable the i2c interface
+ usually reserved for the VideoCore processor
+ (default "off")
- i2c An alias for i2c_arm
+ i2c An alias for i2c_arm
- i2c_arm_baudrate Set the baudrate of the ARM's i2c interface
- (default "100000")
+ i2c_arm_baudrate Set the baudrate of the ARM's i2c interface
+ (default "100000")
- i2c_vc_baudrate Set the baudrate of the VideoCore i2c interface
- (default "100000")
+ i2c_vc_baudrate Set the baudrate of the VideoCore i2c interface
+ (default "100000")
- i2c_baudrate An alias for i2c_arm_baudrate
+ i2c_baudrate An alias for i2c_arm_baudrate
- i2s Set to "on" to enable the i2s interface
- (default "off")
+ i2s Set to "on" to enable the i2s interface
+ (default "off")
- spi Set to "on" to enable the spi interfaces
- (default "off")
+ spi Set to "on" to enable the spi interfaces
+ (default "off")
- random Set to "on" to enable the hardware random
- number generator (default "on")
+ random Set to "on" to enable the hardware random
+ number generator (default "on")
- uart0 Set to "off" to disable uart0 (default "on")
+ uart0 Set to "off" to disable uart0 (default "on")
- watchdog Set to "on" to enable the hardware watchdog
- (default "off")
+ watchdog Set to "on" to enable the hardware watchdog
+ (default "off")
- act_led_trigger Choose which activity the LED tracks.
- Use "heartbeat" for a nice load indicator.
- (default "mmc")
+ act_led_trigger Choose which activity the LED tracks.
+ Use "heartbeat" for a nice load indicator.
+ (default "mmc")
- act_led_activelow Set to "on" to invert the sense of the LED
- (default "off")
+ act_led_activelow Set to "on" to invert the sense of the LED
+ (default "off")
- act_led_gpio Set which GPIO to use for the activity LED
- (in case you want to connect it to an external
- device)
- (default "16" on a non-Plus board, "47" on a
- Plus or Pi 2)
+ act_led_gpio Set which GPIO to use for the activity LED
+ (in case you want to connect it to an external
+ device)
+ (default "16" on a non-Plus board, "47" on a
+ Plus or Pi 2)
pwr_led_trigger
pwr_led_activelow
pwr_led_gpio
- As for act_led_*, but using the PWR LED.
- Not available on Model A/B boards.
+ As for act_led_*, but using the PWR LED.
+ Not available on Model A/B boards.
N.B. It is recommended to only enable those interfaces that are needed.
Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
@@ -149,19 +149,19 @@ Params:
Name: ads7846
Info: ADS7846 Touch controller
Load: dtoverlay=ads7846,<param>=<val>
-Params: cs SPI bus Chip Select (default 1)
- speed SPI bus speed (default 2MHz, max 3.25MHz)
- penirq GPIO used for PENIRQ. REQUIRED
- penirq_pull Set GPIO pull (default 0=none, 2=pullup)
- swapxy Swap x and y axis
- xmin Minimum value on the X axis (default 0)
- ymin Minimum value on the Y axis (default 0)
- xmax Maximum value on the X axis (default 4095)
- ymax Maximum value on the Y axis (default 4095)
- pmin Minimum reported pressure value (default 0)
- pmax Maximum reported pressure value (default 65535)
- xohms Touchpanel sensitivity (X-plate resistance)
- (default 400)
+Params: cs SPI bus Chip Select (default 1)
+ speed SPI bus speed (default 2MHz, max 3.25MHz)
+ penirq GPIO used for PENIRQ. REQUIRED
+ penirq_pull Set GPIO pull (default 0=none, 2=pullup)
+ swapxy Swap x and y axis
+ xmin Minimum value on the X axis (default 0)
+ ymin Minimum value on the Y axis (default 0)
+ xmax Maximum value on the X axis (default 4095)
+ ymax Maximum value on the Y axis (default 4095)
+ pmin Minimum reported pressure value (default 0)
+ pmax Maximum reported pressure value (default 65535)
+ xohms Touchpanel sensitivity (X-plate resistance)
+ (default 400)
penirq is required and usually xohms (60-100) has to be set as well.
Apart from that, pmax (255) and swapxy are also common.
@@ -175,12 +175,12 @@ Name: at86rf233
Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,
connected to spi0.0
Load: dtoverlay=at86rf233,<param>=<val>
-Params: interrupt GPIO used for INT (default 23)
- reset GPIO used for Reset (default 24)
- sleep GPIO used for Sleep (default 25)
- speed SPI bus speed in Hz (default 6000000)
- trim Fine tuning of the internal capacitance
- arrays (0=+0pF, 15=+4.5pF, default 15)
+Params: interrupt GPIO used for INT (default 23)
+ reset GPIO used for Reset (default 24)
+ sleep GPIO used for Sleep (default 25)
+ speed SPI bus speed in Hz (default 6000000)
+ trim Fine tuning of the internal capacitance
+ arrays (0=+0pF, 15=+4.5pF, default 15)
Name: bmp085_i2c-sensor
@@ -194,8 +194,8 @@ Name: dht11
Info: Overlay for the DHT11/DHT21/DHT22 humidity/temperature sensors
Also sometimes found with the part number(s) AM230x.
Load: dtoverlay=dht11,<param>=<val>
-Params: gpiopin GPIO connected to the sensor's DATA output.
- (default 4)
+Params: gpiopin GPIO connected to the sensor's DATA output.
+ (default 4)
Name: dwc-otg
@@ -208,15 +208,15 @@ Params: <None>
Name: dwc2
Info: Selects the dwc2 USB controller driver
Load: dtoverlay=dwc2,<param>=<val>
-Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
+Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
- g-rx-fifo-size Size of rx fifo size in gadget mode
+ g-rx-fifo-size Size of rx fifo size in gadget mode
- g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget
- mode
+ g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget
+ mode
- g-tx-fifo-size Size of periodic tx fifo per endpoint
- (except ep0) in gadget mode
+ g-tx-fifo-size Size of periodic tx fifo per endpoint
+ (except ep0) in gadget mode
[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
@@ -225,9 +225,9 @@ Params: dr_mode Dual ro
Name: enc28j60
Info: Overlay for the Microchip ENC28J60 Ethernet Controller (SPI)
Load: dtoverlay=enc28j60,<param>=<val>
-Params: int_pin GPIO used for INT (default 25)
+Params: int_pin GPIO used for INT (default 25)
- speed SPI bus speed (default 12000000)
+ speed SPI bus speed (default 12000000)
Name: gpio-ir
@@ -237,26 +237,26 @@ Info: Use GPIO pin as rc-core style in
not required! The key mapping and other decoding parameters can be
configured by "ir-keytable" tool.
Load: dtoverlay=gpio-ir,<param>=<val>
-Params: gpio_pin Input pin number. Default is 18.
+Params: gpio_pin Input pin number. Default is 18.
- gpio_pull Desired pull-up/down state (off, down, up)
- Default is "down".
+ gpio_pull Desired pull-up/down state (off, down, up)
+ Default is "down".
- rc-map-name Default rc keymap (can also be changed by
- ir-keytable), defaults to "rc-rc6-mce"
+ rc-map-name Default rc keymap (can also be changed by
+ ir-keytable), defaults to "rc-rc6-mce"
Name: gpio-poweroff
Info: Drives a GPIO high or low on reboot
Load: dtoverlay=gpio-poweroff,<param>=<val>
-Params: gpiopin GPIO for signalling (default 26)
+Params: gpiopin GPIO for signalling (default 26)
- active_low Set if the power control device requires a
- high->low transition to trigger a power-down.
- Note that this will require the support of a
- custom dt-blob.bin to prevent a power-down
- during the boot process, and that a reboot
- will also cause the pin to go low.
+ active_low Set if the power control device requires a
+ high->low transition to trigger a power-down.
+ Note that this will require the support of a
+ custom dt-blob.bin to prevent a power-down
+ during the boot process, and that a reboot
+ will also cause the pin to go low.
Name: hifiberry-amp
@@ -300,65 +300,65 @@ Name: hy28a
Info: HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
Default values match Texy's display shield
Load: dtoverlay=hy28a,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
- resetgpio GPIO used to reset controller
+ resetgpio GPIO used to reset controller
- ledgpio GPIO used to control backlight
+ ledgpio GPIO used to control backlight
Name: hy28b
Info: HY28B - 2.8" TFT LCD Display Module by HAOYU Electronics
Default values match Texy's display shield
Load: dtoverlay=hy28b,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
- resetgpio GPIO used to reset controller
+ resetgpio GPIO used to reset controller
- ledgpio GPIO used to control backlight
+ ledgpio GPIO used to control backlight
Name: i2c-gpio
Info: Adds support for software i2c controller on gpio pins
Load: dtoverlay=i2c-gpio,<param>=<val>
-Params: i2c_gpio_sda GPIO used for I2C data (default "23")
+Params: i2c_gpio_sda GPIO used for I2C data (default "23")
- i2c_gpio_scl GPIO used for I2C clock (default "24")
+ i2c_gpio_scl GPIO used for I2C clock (default "24")
- i2c_gpio_delay_us Clock delay in microseconds
- (default "2" = ~100kHz)
+ i2c_gpio_delay_us Clock delay in microseconds
+ (default "2" = ~100kHz)
Name: i2c-rtc
Info: Adds support for a number of I2C Real Time Clock devices
Load: dtoverlay=i2c-rtc,<param>=<val>
-Params: ds1307 Select the DS1307 device
+Params: ds1307 Select the DS1307 device
- ds3231 Select the DS3231 device
+ ds3231 Select the DS3231 device
- mcp7941x Select the MCP7941x device
+ mcp7941x Select the MCP7941x device
- pcf2127 Select the PCF2127 device
+ pcf2127 Select the PCF2127 device
- pcf8523 Select the PCF8523 device
+ pcf8523 Select the PCF8523 device
- pcf8563 Select the PCF8563 device
+ pcf8563 Select the PCF8563 device
Name: i2s-mmap
@@ -396,70 +396,70 @@ Name: lirc-rpi
Info: Configures lirc-rpi (Linux Infrared Remote Control for Raspberry Pi)
Consult the module documentation for more details.
Load: dtoverlay=lirc-rpi,<param>=<val>
-Params: gpio_out_pin GPIO for output (default "17")
+Params: gpio_out_pin GPIO for output (default "17")
- gpio_in_pin GPIO for input (default "18")
+ gpio_in_pin GPIO for input (default "18")
- gpio_in_pull Pull up/down/off on the input pin
- (default "down")
+ gpio_in_pull Pull up/down/off on the input pin
+ (default "down")
- sense Override the IR receive auto-detection logic:
- "0" = force active-high
- "1" = force active-low
- "-1" = use auto-detection
- (default "-1")
+ sense Override the IR receive auto-detection logic:
+ "0" = force active-high
+ "1" = force active-low
+ "-1" = use auto-detection
+ (default "-1")
- softcarrier Turn the software carrier "on" or "off"
- (default "on")
+ softcarrier Turn the software carrier "on" or "off"
+ (default "on")
- invert "on" = invert the output pin (default "off")
+ invert "on" = invert the output pin (default "off")
- debug "on" = enable additional debug messages
- (default "off")
+ debug "on" = enable additional debug messages
+ (default "off")
Name: mcp2515-can0
Info: Configures the MCP2515 CAN controller on spi0.0
Load: dtoverlay=mcp2515-can0,<param>=<val>
-Params: oscillator Clock frequency for the CAN controller (Hz)
+Params: oscillator Clock frequency for the CAN controller (Hz)
- spimaxfrequency Maximum SPI frequence (Hz)
+ spimaxfrequency Maximum SPI frequence (Hz)
- interrupt GPIO for interrupt signal
+ interrupt GPIO for interrupt signal
Name: mcp2515-can1
Info: Configures the MCP2515 CAN controller on spi0.1
Load: dtoverlay=mcp2515-can1,<param>=<val>
-Params: oscillator Clock frequency for the CAN controller (Hz)
+Params: oscillator Clock frequency for the CAN controller (Hz)
- spimaxfrequency Maximum SPI frequence (Hz)
+ spimaxfrequency Maximum SPI frequence (Hz)
- interrupt GPIO for interrupt signal
+ interrupt GPIO for interrupt signal
Name: mmc
Info: Selects the bcm2835-mmc SD/MMC driver, optionally with overclock
Load: dtoverlay=mmc,<param>=<val>
-Params: overclock_50 Clock (in MHz) to use when the MMC framework
- requests 50MHz
- force_pio Disable DMA support
+Params: overclock_50 Clock (in MHz) to use when the MMC framework
+ requests 50MHz
+ force_pio Disable DMA support
Name: mz61581
Info: MZ61581 display by Tontec
Load: dtoverlay=mz61581,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- txbuflen Transmit buffer length (default 32768)
+ txbuflen Transmit buffer length (default 32768)
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
@@ -474,69 +474,69 @@ Params: speed Display
Name: piscreen
Info: PiScreen display by OzzMaker.com
Load: dtoverlay=piscreen,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
Name: piscreen2r
Info: PiScreen 2 with resistive TP display by OzzMaker.com
Load: dtoverlay=piscreen2r,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
Name: pitft28-capacitive
Info: Adafruit PiTFT 2.8" capacitive touch screen
Load: dtoverlay=pitft28-capacitive,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- touch-sizex Touchscreen size x (default 240)
+ touch-sizex Touchscreen size x (default 240)
- touch-sizey Touchscreen size y (default 320)
+ touch-sizey Touchscreen size y (default 320)
- touch-invx Touchscreen inverted x axis
+ touch-invx Touchscreen inverted x axis
- touch-invy Touchscreen inverted y axis
+ touch-invy Touchscreen inverted y axis
- touch-swapxy Touchscreen swapped x y axis
+ touch-swapxy Touchscreen swapped x y axis
Name: pitft28-resistive
Info: Adafruit PiTFT 2.8" resistive touch screen
Load: dtoverlay=pitft28-resistive,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
Name: pps-gpio
Info: Configures the pps-gpio (pulse-per-second time signal via GPIO).
Load: dtoverlay=pps-gpio,<param>=<val>
-Params: gpiopin Input GPIO (default "18")
+Params: gpiopin Input GPIO (default "18")
Name: pwm
@@ -553,9 +553,9 @@ Info: Configures a single PWM channel
4) Currently the clock must have been enabled and configured
by other means.
Load: dtoverlay=pwm,<param>=<val>
-Params: pin Output pin (default 18) - see table
- func Pin function (default 2 = Alt5) - see above
- clock PWM clock frequency (informational)
+Params: pin Output pin (default 18) - see table
+ func Pin function (default 2 = Alt5) - see above
+ clock PWM clock frequency (informational)
Name: pwm-2chan
@@ -572,11 +572,11 @@ Info: Configures both PWM channels
4) Currently the clock must have been enabled and configured
by other means.
Load: dtoverlay=pwm-2chan,<param>=<val>
-Params: pin Output pin (default 18) - see table
- pin2 Output pin for other channel (default 19)
- func Pin function (default 2 = Alt5) - see above
- func2 Function for pin2 (default 2 = Alt5)
- clock PWM clock frequency (informational)
+Params: pin Output pin (default 18) - see table
+ pin2 Output pin for other channel (default 19)
+ func Pin function (default 2 = Alt5) - see above
+ func2 Function for pin2 (default 2 = Alt5)
+ clock PWM clock frequency (informational)
Name: raspidac3
@@ -600,15 +600,15 @@ Params: <None>
Name: rpi-display
Info: RPi-Display - 2.8" Touch Display by Watterott
Load: dtoverlay=rpi-display,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- xohms Touchpanel sensitivity (X-plate resistance)
+ xohms Touchpanel sensitivity (X-plate resistance)
Name: rpi-ft5406
@@ -632,52 +632,52 @@ Params: <None>
Name: sdhost
Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock
Load: dtoverlay=sdhost,<param>=<val>
-Params: overclock_50 Clock (in MHz) to use when the MMC framework
- requests 50MHz
+Params: overclock_50 Clock (in MHz) to use when the MMC framework
+ requests 50MHz
- force_pio Disable DMA support (default off)
+ force_pio Disable DMA support (default off)
- pio_limit Number of blocks above which to use DMA
- (default 1)
+ pio_limit Number of blocks above which to use DMA
+ (default 1)
- debug Enable debug output (default off)
+ debug Enable debug output (default off)
Name: sdio
Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock,
and enables SDIO via GPIOs 22-27.
Load: dtoverlay=sdio,<param>=<val>
-Params: overclock_50 SD Clock (in MHz) to use when the MMC framework
- requests 50MHz
+Params: overclock_50 SD Clock (in MHz) to use when the MMC framework
+ requests 50MHz
- sdio_overclock SDIO Clock (in MHz) to use when the MMC
- framework requests 50MHz
+ sdio_overclock SDIO Clock (in MHz) to use when the MMC
+ framework requests 50MHz
- force_pio Disable DMA support (default off)
+ force_pio Disable DMA support (default off)
- pio_limit Number of blocks above which to use DMA
- (default 1)
+ pio_limit Number of blocks above which to use DMA
+ (default 1)
- debug Enable debug output (default off)
+ debug Enable debug output (default off)
- poll_once Disable SDIO-device polling every second
- (default on: polling once at boot-time)
+ poll_once Disable SDIO-device polling every second
+ (default on: polling once at boot-time)
- bus_width Set the SDIO host bus width (default 4 bits)
+ bus_width Set the SDIO host bus width (default 4 bits)
Name: sdtweak
Info: Tunes the bcm2835-sdhost SD/MMC driver
Load: dtoverlay=sdtweak,<param>=<val>
-Params: overclock_50 Clock (in MHz) to use when the MMC framework
- requests 50MHz
+Params: overclock_50 Clock (in MHz) to use when the MMC framework
+ requests 50MHz
- force_pio Disable DMA support (default off)
+ force_pio Disable DMA support (default off)
- pio_limit Number of blocks above which to use DMA
- (default 1)
+ pio_limit Number of blocks above which to use DMA
+ (default 1)
- debug Enable debug output (default off)
+ debug Enable debug output (default off)
Name: smi
@@ -708,25 +708,25 @@ Name: tinylcd35
Info: 3.5" Color TFT Display by www.tinylcd.com
Options: Touch, RTC, keypad
Load: dtoverlay=tinylcd35,<param>=<val>
-Params: speed Display SPI bus speed
+Params: speed Display SPI bus speed
- rotate Display rotation {0,90,180,270}
+ rotate Display rotation {0,90,180,270}
- fps Delay between frame updates
+ fps Delay between frame updates
- debug Debug output level {0-7}
+ debug Debug output level {0-7}
- touch Enable touch panel
+ touch Enable touch panel
- touchgpio Touch controller IRQ GPIO
+ touchgpio Touch controller IRQ GPIO
- xohms Touchpanel: Resistance of X-plate in ohms
+ xohms Touchpanel: Resistance of X-plate in ohms
- rtc-pcf PCF8563 Real Time Clock
+ rtc-pcf PCF8563 Real Time Clock
- rtc-ds DS1307 Real Time Clock
+ rtc-ds DS1307 Real Time Clock
- keypad Enable keypad
+ keypad Enable keypad
Examples:
Display with touchpanel, PCF8563 RTC and keypad:
@@ -738,9 +738,9 @@ Params: speed Display
Name: uart1
Info: Enable uart1 in place of uart0
Load: dtoverlay=uart1,<param>=<val>
-Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14)
+Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14)
- rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
+ rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
Name: vc4-kms-v3d
@@ -763,22 +763,22 @@ Name: w1-gpio
Info: Configures the w1-gpio Onewire interface module.
Use this overlay if you *don't* need a GPIO to drive an external pullup.
Load: dtoverlay=w1-gpio,<param>=<val>
-Params: gpiopin GPIO for I/O (default "4")
+Params: gpiopin GPIO for I/O (default "4")
- pullup Non-zero, "on", or "y" to enable the parasitic
- power (2-wire, power-on-data) feature
+ pullup Non-zero, "on", or "y" to enable the parasitic
+ power (2-wire, power-on-data) feature
Name: w1-gpio-pullup
Info: Configures the w1-gpio Onewire interface module.
Use this overlay if you *do* need a GPIO to drive an external pullup.
Load: dtoverlay=w1-gpio-pullup,<param>=<val>
-Params: gpiopin GPIO for I/O (default "4")
+Params: gpiopin GPIO for I/O (default "4")
- pullup Non-zero, "on", or "y" to enable the parasitic
- power (2-wire, power-on-data) feature
+ pullup Non-zero, "on", or "y" to enable the parasitic
+ power (2-wire, power-on-data) feature
- extpullup GPIO for external pullup (default "5")
+ extpullup GPIO for external pullup (default "5")
Troubleshooting
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