Цитата:
Сообщение от
zebest
в консоле можно проконтролировать USB
1) к OTG переходнику подключен только power meter - напряжение есть, -0.1В от напряжения питания. Напряжение появлется в момент инициализации драйвера в линуксе
2) Подключена только клавиатура. Напряжение на OTG появляется и тут же вырубается. В логе
Цитата:
Start to scan dir: /media/fat/
Got 2 dir entries
pFileExt = RBF
1.283658] dwc2 ffb40000.usb: Not connected
[ 1.317300] dwc2 ffb40000.usb: Not connected
[ 1.321565] dwc2 ffb40000.usb: Not connected
OSD is now visible
Starting logging: [ 1.325890] dwc2 ffb40000.usb: Not connected
[ 1.333423] hub 1-1:1.0: activate --> -19
OK
3) Подключен USB 2.0 хаб без внешнего питания
Цитата:
Populating /dev using udev: [ 1.653397] dwc2 ffb40000.usb: Not connected
[ 1.657702] dwc2 ffb40000.usb: Not connected
[ 1.661964] dwc2 ffb40000.usb: Not connected
[ 1.666269] dwc2 ffb40000.usb: Not connected
[ 1.670528] hub 1-1.3:1.0: activate --> -19
[ 1.690011] dwc2 ffb40000.usb: Not connected
[ 1.694328] dwc2 ffb40000.usb: Not connected
[ 1.698589] dwc2 ffb40000.usb: Not connected
[ 1.702849] dwc2 ffb40000.usb: Not connected
[ 1.707149] dwc2 ffb40000.usb: Not connected
[ 1.711410] hub 1-1.3:1.0: activate --> -19
[ 1.716154] dwc2 ffb40000.usb: Not connected
[ 1.720445] dwc2 ffb40000.usb: Not connected
[ 1.724733] dwc2 ffb40000.usb: Not connected
[ 1.728995] dwc2 ffb40000.usb: Not connected
[ 1.733256] dwc2 ffb40000.usb: Not connected
[ 1.737531] hub 1-1.3:1.0: activate --> -19
[ 1.742127] dwc2 ffb40000.usb: Not connected
[ 1.746428] dwc2 ffb40000.usb: Not connected
[ 1.750689] dwc2 ffb40000.usb: Not connected
[ 1.754978] dwc2 ffb40000.usb: Not connected
[ 1.759241] dwc2 ffb40000.usb: Not connected
[ 1.763511] hub 1-1.3:1.0: activate --> -19
[ 1.768335] dwc2 ffb40000.usb: Not connected
[ 1.772623] dwc2 ffb40000.usb: Not connected
[ 1.776907] dwc2 ffb40000.usb: Not connected
[ 1.781167] dwc2 ffb40000.usb: Not connected
[ 1.785445] dwc2 ffb40000.usb: Not connected
[ 1.789703] hub 1-1.3:1.0: activate --> -19
[ 1.794368] dwc2 ffb40000.usb: Not connected
[ 1.798656] dwc2 ffb40000.usb: Not connected
[ 1.802918] dwc2 ffb40000.usb: Not connected
[ 1.807204] dwc2 ffb40000.usb: Not connected
[ 1.811466] dwc2 ffb40000.usb: Not connected
[ 1.815743] hub 1-1.3:1.0: activate --> -19
done
4) Хаб с внешним питанием - никакой разницы по ошибкам в консоль, по сравнению с вариантом 3), но самих записей в 3 раза больше
5) Если стартовать без подключенных USB устройств, а потом воткнуть, то в момент подключения:
Цитата:
[ 27.114038] dwc2 ffb40000.usb: Not connected
[ 27.118306] dwc2 ffb40000.usb: Not connected
[ 27.122564] dwc2 ffb40000.usb: Not connected
[ 27.126850] dwc2 ffb40000.usb: Not connected
[ 27.131108] hub 1-1:1.0: activate --> -19