From 3a022a68120896219c7b8a283cda62e3a0c55119 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Mon, 26 Aug 2019 09:36:03 +0200 Subject: [PATCH] platform: Add USB device MaxPower default setting The MaxPower field specifies the maximum power that a device can draw from the host, when the device is bus-powered. Define the default value of 100mA default in the platform to allow to override it from the board definition. Some mobile devices will only supply 20mA. If a device is known to draw less current, adding this to the board config will make it work: .build.usb_power=20 --- platform.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/platform.txt b/platform.txt index e5b47dc61..a97a77d20 100644 --- a/platform.txt +++ b/platform.txt @@ -73,7 +73,10 @@ compiler.arm.cmsis.ldflags="-L{runtime.tools.CMSIS-4.5.0.path}/CMSIS/Lib/GCC/" # USB Flags # --------- -build.usb_flags=-DUSB_VID={build.vid} -DUSB_PID={build.pid} -DUSBCON '-DUSB_MANUFACTURER={build.usb_manufacturer}' '-DUSB_PRODUCT={build.usb_product}' {build.flags.usbstack} {build.flags.debug} "-I{build.core.path}/Adafruit_TinyUSB_Core" "-I{build.core.path}/Adafruit_TinyUSB_Core/tinyusb/src" +build.usb_flags=-DUSB_VID={build.vid} -DUSB_PID={build.pid} -DUSBCON -DUSB_CONFIG_POWER={build.usb_power} '-DUSB_MANUFACTURER={build.usb_manufacturer}' '-DUSB_PRODUCT={build.usb_product}' {build.flags.usbstack} {build.flags.debug} "-I{build.core.path}/Adafruit_TinyUSB_Core" "-I{build.core.path}/Adafruit_TinyUSB_Core/tinyusb/src" + +# Default advertised device power setting in mA +build.usb_power=100 # Default usb manufacturer will be replaced at compile time using # numeric vendor ID if available or by board's specific value.