hcyang1012

static ssize_t virtKeyboard_write(struct file *file, const char __user *buf, size_t len, loff_t *ppos){
    u32 keycode = 0u;
    u8 *kernel_buf = (u8*)kzalloc(len,GFP_KERNEL);
    int ret = 0;
    pr_info(LOG("Length : %d"),len);
    if(kernel_buf == NULL){
        pr_err(LOG("Not enough memory"));
        return -ENOMEM;
    }
    

hcyang1012

setenv bootargs 'console=tty0 console=ttyO0,115200n8 root=/dev/nfs rootfstype=nfs rw nfsroot=172.30.1.33:/home/hcyang/bbb/rootfs ip=dhcp rootwait'
setenv ipaddr 172.30.1.50
setenv serverip 172.30.1.33
tftpboot 0x80200000 vmlinuz-4.9.119-bone11
tftpboot 0x815f0000 dtbs/am335x-boneblack.dtb
bootz 0x80200000 - 0x815f0000

hcyang1012

sudo cp -v ./uEnv.txt rootfs/
sudo tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C rootfs/
sudo sync
sudo sudo chown root:root rootfs/
sudo sudo chmod 755 rootfs/
sudo sync
sudo cp -v ./bb-kernel/deploy/${kernel_version}.zImage rootfs/boot/vmlinuz-${kernel_version}
sudo mkdir -p rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-dtbs.tar.gz -C rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-modules.tar.gz -C rootfs/

hcyang1012

/* Device Tree */
&dcan1{
     #address-cells = <1>;
     #size-cells = <0>;

     status = "okay";
     pinctrl-names = "default";
     pinctrl-0 = <&dcan1_pins_s0>;
 };

hcyang1012

sudo tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /home/hcyang/work/boot/rootfs/
sync
sudo chown root:root  /home/hcyang/work/boot/rootfs/
sudo chmod 755  /home/hcyang/work/boot/rootfs/
sync
sudo mkdir -p /home/hcyang/work/boot/rootfs/boot/
sudo mkdir -p /home/hcyang/work/boot/rootfs/boot/dtbs/${kernel_version}/
sudo mkdir -p rootfs/boot/dtbs/${kernel_version}/

sudo sh -c "echo 'uname_r=${kernel_version}' >> /home/hcyang/work/boot/rootfs/boot/uEnv.txt"

hcyang1012

/*
 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
/dts-v1/;

#include "am33xx.dtsi"

hcyang1012

@startuml
participant "head.S"
participant "init/main.c"
participant "init/main.c (New kernel thread)"

head.S  -> "init/main.c": start_kernel()
activate  "init/main.c"
"init/main.c"  -> "init/main.c": arch_call_rest_init()
activate  "init/main.c"
"init/main.c"  -> "init/main.c": rest_init();

hcyang1012

class CPU {
public:
void Work();
private:
};



class Intel : public CPU{
  public :

hcyang1012

class CPU {
public:
void Work();
private:
};



class Intel : public CPU{
  public :

hcyang1012

fn main() {
    println!("Hello, world!");
}