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usb测试

作者:互联网

  1. USB0 驱动是否加载
    a,USB0 host
    cat /sys/devices/platform/soc/usbc0/usb_host

b,USB0 device
cat /sys/devices/platform/soc/usbc0/usb_device

c,获取USB0当前角色
cat /sys/devices/platform/soc/usbc0/otg_role

  1. USB1驱动加载
    a,加载
    echo 1 > /sys/devices/platform/soc/5200000.ehci1-controller/ehci_enable
    echo 1 > /sys/devices/platform/soc/5200000.ohci1-controller/ohci_enable

b,卸载
echo 0 > /sys/devices/platform/soc/5200000.ehci1-controller/ehci_enable
echo 0 > /sys/devices/platform/soc/5200000.ohci1-controller/ohci_enable

  1. USB做mass storage
    dd if=/dev/zero of=/dev/a.bin bs=1M count=100
    mount -t configfs none /sys/kernel/config
    mkdir /sys/kernel/config/usb_gadget/g1
    echo “0x18d1” > /sys/kernel/config/usb_gadget/g1/idVendor
    echo “0x0001” > /sys/kernel/config/usb_gadget/g1/idProduct
    mkdir /sys/kernel/config/usb_gadget/g1/strings/0x409
    mkdir /sys/kernel/config/usb_gadget/g1/functions/mass_storage.usb0
    echo /dev/a.bin > /sys/kernel/config/usb_gadget/g1/functions/mass_sto
    rage.usb0/lun.0/file
    mkdir /sys/kernel/config/usb_gadget/g1/configs/c.1
    echo 0xc0 > /sys/kernel/config/usb_gadget/g1/configs/c.1/bmAttributes
    echo 500 > /sys/kernel/config/usb_gadget/g1/configs/c.1/MaxPower
    mkdir /sys/kernel/config/usb_gadget/g1/configs/c.1/strings/0x409
    ln -s /sys/kernel/config/usb_gadget/g1/functions/mass_storage.usb0/ /sys/kernel/config/usb_gadget/g1/configs/c.1/
    ls /sys/class/udc/ |xargs echo > /sys/kernel/config/usb_gadget/g1/UDC

  2. USB做CDROM

标签:kernel,usb,g1,gadget,sys,测试,config
来源: https://blog.csdn.net/qq_38202733/article/details/121165789