91 lines
2.5 KiB
Plaintext
91 lines
2.5 KiB
Plaintext
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#! /bin/sh
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/bin/mount -a
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/bin/busybox --install
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/bin/mount -t sysfs none /sys
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/bin/mount -t debugfs debugfs /sys/kernel/debug
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/bin/mount -t tracefs tracefs /sys/kernel/debug/tracing > /dev/null 2>&1
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/sbin/mdev -s
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/bin/echo /sbin/mdev > /proc/sys/kernel/hotplug
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# This is necessary to emulate the android environment expected by adbd
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echo "Configuring the Kdev environment to support 'adb shell' ..."
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mkdir /dev/pts
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mount -t devpts devpts /dev/pts
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chmod 0666 /dev/ptmx
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mkdir -p /system/bin
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ln -s /bin/sh /system/bin/sh
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chmod 4755 /bin/su
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# get soc platform
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if [ -f /sys/devices/soc0/hw_platform ]; then
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socplatform=`cat /sys/devices/soc0/machine` 2> /dev/null
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else
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socplatform=`cat /sys/devices/system/soc/soc0/machine` 2> /dev/null
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fi
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echo "soc:" $socplatform
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# find serialno from cmdline
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cmdline=`cat /proc/cmdline` 2> /dev/null
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strsearch="androidboot.serialno="
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if echo "$cmdline" | grep -q "$strsearch"; then
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startsearch=${cmdline#*$strsearch}
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pos=$(( ${#cmdline} - ${#startsearch}))
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serialno=${cmdline:$pos:8}
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else
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echo "serialno not found with cmdline, use default"
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serialno="12345678"
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fi
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echo "serialno:" $serialno
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mount -t configfs none /sys/kernel/config
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if [ -d /sys/kernel/config/usb_gadget ]; then
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echo "Configuring the USB gadget using ConfigFS..."
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cd /sys/kernel/config/usb_gadget
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mkdir g1
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cd g1
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mkdir strings/0x409
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mkdir configs/c.1
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mkdir configs/c.1/strings/0x409
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mkdir functions/ffs.adb
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echo "$serialno" > strings/0x409/serialnumber
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echo "QCOM" > strings/0x409/manufacturer
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echo "$socplatform" > strings/0x409/product
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echo 0x18d1 > /sys/kernel/config/usb_gadget/g1/idVendor
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echo 0x4E11 > /sys/kernel/config/usb_gadget/g1/idProduct
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echo "ADB" > configs/c.1/strings/0x409/configuration
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else
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echo "Configuring the USB gadget using legcy method..."
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cd /sys/class/android_usb/android0/
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echo 0 > enable
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echo 05C6 > idVendor
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echo 901D > idProduct
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echo "$serialno" > iSerial
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echo "QCOM" > iManufacturer
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echo "$socplatform" > iProduct
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echo diag > f_diag/clients
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echo diag,ffs > functions
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echo 1 > enable
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fi
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echo "Configuring FunctionFS endpoints for adbd..."
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if [ ! -d /dev/usb-ffs/adb ]; then
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mkdir -p /dev/usb-ffs/adb
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fi
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if [ ! -e /dev/usb-ffs/adb/ep0 ]; then
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mount -o uid=2000,gid=2000 -t functionfs adb /dev/usb-ffs/adb
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fi
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echo "Launching adbd..."
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/sbin/adbd &
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if [ -d /sys/kernel/config/usb_gadget ]; then
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ln -s functions/ffs.adb configs/c.1/f1
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sleep 1
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udcname=`ls -1 /sys/class/udc | head -n 1`
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echo "binding UDC with Gadget..." $udcname
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echo $udcname > UDC
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fi
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