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USB插上U盘没有反应。
环境:EK200-6Q,软件 linux3.14.52 QT 。
丝印J8 (MYIMX6-MB200硬件介绍)口插上U盘
根据3.14测试手册,超级终端应该有打印信息
但是没有反应。
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抓取信息
dmesg|grep -i usb
[ 0.184786] usb_otg_vbus: no parameters
[ 0.184992] usb_h1_vbus: no parameters
[ 0.186984] usbcore: registered new interface driver usbfs
[ 0.187046] usbcore: registered new interface driver hub
[ 0.187142] usbcore: registered new device driver usb
[ 0.187293] usbphy_nop1.12 supply vcc not found, using dummy regulator
[ 0.187389] usbphy_nop2.13 supply vcc not found, using dummy regulator
[ 1.320442] usbcore: registered new interface driver smsc95xx
[ 1.324931] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.337575] usbcore: registered new interface driver usb-storage
[ 1.342343] usbcore: registered new interface driver usb_ehset_test
[ 1.348343] 2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
[ 1.842494] usbcore: registered new interface driver bcm203x
[ 1.846939] usbcore: registered new interface driver btusb
[ 1.851188] usbcore: registered new interface driver ath3k
[ 3.758242] usbcore: registered new interface driver usbhid
[ 3.762519] usbhid: USB HID core driver
[ 4.286383] usb_h1_vbus: disabling
[ 4.288489] usb_otg_vbus: disabling
是不是usb_h1_vbus的问题?
因为我从硬件my-i.mx6_mb_v2.6_sch看到usb确实需要usb_h1_vbus的
另外我看了设备树的配置
&usbh1 {
vbus-supply = <®_usb_h1_vbus>;
status = "okay";
};
&usbotg {
vbus-supply = <®_usb_otg_vbus>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usbotg>;
disable-over-current;
srp-disable;
hnp-disable;
adp-disable;
status = "okay";
};
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应该怎么处理这个问题?
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