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Negro

V853做的板子，buildroot系统，要适配一个gc2503 4land的单目摄像头,，看了文档都是双目的，弄了好久没有弄出图像来，不知道怎么搞了，求指导。以下是做过的操作：
1、DTS的vind节点如下：

              vind0:vind@0 {
			vind0_clk = <200000000>;
			status = "okay";

	                 csi2:csi@2 {
		              pinctrl-names = "default","sleep";
                              pinctrl-0 = <&ncsi_pins_a>;
                              pinctrl-1 = <&ncsi_pins_b>;
                              status = "disabled";
	                };

		/*offline mode*/
             tdm0:tdm@0 {
                 work_mode = <1>;
             };

             isp00:isp@0 {
                 work_mode = <1>;
             };

             scaler00:scaler@0 {
                 work_mode = <1>;
             };

             scaler10:scaler@4 {
                 work_mode = <1>;
             };

             scaler20:scaler@8 {
                 work_mode = <1>;
             };

             scaler30:scaler@12 {
                 work_mode = <1>;
             };

			actuator0:actuator@0 {
				device_type = "actuator0";
				actuator0_name = "ad5820_act";
				actuator0_slave = <0x18>;
				actuator0_af_pwdn = <>;
				actuator0_afvdd = "afvcc-csi";
				actuator0_afvdd_vol = <2800000>;
				status = "disabled";
			};

			flash0:flash@0 {
				device_type = "flash0";
				flash0_type = <2>;
				flash0_en = <>;
				flash0_mode = <>;
				flash0_flvdd = "";
				flash0_flvdd_vol = <>;
				status = "disabled";
			};

			sensor0:sensor@0 {
				device_type = "sensor0";
				sensor0_mname = "gc2053_mipi";
				sensor0_twi_cci_id = <1>;
				sensor0_twi_addr = <0x6e>;
				sensor0_mclk_id = <0>;
				sensor0_pos = "rear";
				sensor0_isp_used = <1>;
				sensor0_fmt = <1>;
				sensor0_stby_mode = <0>;
				sensor0_vflip = <0>;
				sensor0_hflip = <0>;
				sensor0_iovdd-supply = <&reg_bldo1>;
				sensor0_iovdd_vol = <1800000>;
				sensor0_avdd-supply = <&reg_bldo2>;
				sensor0_avdd_vol = <2800000>;
				sensor0_dvdd-supply = <&reg_dldo2>;
				sensor0_dvdd_vol = <1200000>;
				sensor0_power_en = <>;
				sensor0_reset = <&pio PA 18 1 0 1 0>;
				sensor0_pwdn = <&pio PA 19 1 0 1 0>;
				sensor0_sm_hs = <>;
				sensor0_sm_vs = <>;
				flash_handle = <&flash0>;
				act_handle = <&actuator0>;
				status	= "okay";
			}

			/* sensor1:sensor@1 {
			 *     device_type = "sensor1";
			 *     sensor1_mname = "gc2053_mipi_2";
			 *     sensor1_twi_cci_id = <0>;
			 *     sensor1_twi_addr = <0x7f>;
			 *     sensor1_mclk_id = <1>;
			 *     sensor1_pos = "front";
			 *     sensor1_isp_used = <1>;
			 *     sensor1_fmt = <1>;
			 *     sensor1_stby_mode = <0>;
			 *     sensor1_vflip = <0>;
			 *     sensor1_hflip = <0>;
			 *     sensor1_iovdd-supply = <&reg_aldo2>;
			 *     sensor1_iovdd_vol = <1800000>;
			 *     sensor1_avdd-supply = <&reg_bldo2>;
			 *     sensor1_avdd_vol = <2800000>;
			 *     sensor1_dvdd-supply = <&reg_dldo2>;
			 *     sensor1_dvdd_vol = <1200000>;
			 *     sensor1_power_en = <>;
			 *     sensor1_reset = <&pio PA 20 1 0 1 0>;
			 *     sensor1_pwdn = <&pio PA 21 1 0 1 0>;
			 *     sensor1_sm_hs = <>;
			 *     sensor1_sm_vs = <>;
			 *     flash_handle = <>;
			 *     act_handle = <>;
			 *     status	= "okay";
			 * }; */

			vinc00:vinc@0 {
				vinc0_csi_sel = <0>;
				vinc0_mipi_sel = <0>;
				vinc0_isp_sel = <0>;
				vinc0_isp_tx_ch = <0>;
				vinc0_tdm_rx_sel = <0>;
				vinc0_rear_sensor_sel = <0>;
				vinc0_front_sensor_sel = <0>;
				vinc0_sensor_list = <0>;
				work_mode = <0x1>;
				status = "okay";
			};
/*
			vinc01:vinc@1 {
				vinc1_csi_sel = <1>;
				vinc1_mipi_sel = <1>;
				vinc1_isp_sel = <1>;
				vinc1_isp_tx_ch = <0>;
				vinc1_tdm_rx_sel = <1>;
				vinc1_rear_sensor_sel = <1>;
				vinc1_front_sensor_sel = <1>;
				vinc1_sensor_list = <0>;
				status = "disabled";
			};

			vinc02:vinc@2 {
				vinc2_csi_sel = <2>;
				vinc2_mipi_sel = <0xff>;
				vinc2_isp_sel = <2>;
				vinc2_isp_tx_ch = <2>;
				vinc2_tdm_rx_sel = <2>;
				vinc2_rear_sensor_sel = <0>;
				vinc2_front_sensor_sel = <0>;
				vinc2_sensor_list = <0>;
				status = "disabled";
			};

			vinc03:vinc@3 {
				vinc3_csi_sel = <0>;
				vinc3_mipi_sel = <0xff>;
				vinc3_isp_sel = <0>;
				vinc3_isp_tx_ch = <0>;
				vinc3_tdm_rx_sel = <0>;
				vinc3_rear_sensor_sel = <1>;
				vinc3_front_sensor_sel = <1>;
				vinc3_sensor_list = <0>;
				status = "disabled";
			};

			vinc10:vinc@4 {
				vinc4_csi_sel = <0>;
				vinc4_mipi_sel = <0>;
				vinc4_isp_sel = <0>;
				vinc4_isp_tx_ch = <0>;
				vinc4_tdm_rx_sel = <0>;
				vinc4_rear_sensor_sel = <0>;
				vinc4_front_sensor_sel = <0>;
				vinc4_sensor_list = <0>;
				work_mode = <0x1>;
				status = "okay";
			};

			vinc11:vinc@5 {
				vinc5_csi_sel = <1>;
				vinc5_mipi_sel = <1>;
				vinc5_isp_sel = <1>;
				vinc5_isp_tx_ch = <0>;
				vinc5_tdm_rx_sel = <1>;
				vinc5_rear_sensor_sel = <1>;
				vinc5_front_sensor_sel = <1>;
				vinc5_sensor_list = <0>;
				status = "disabled";
			};

			vinc12:vinc@6 {
				vinc6_csi_sel = <2>;
				vinc6_mipi_sel = <0xff>;
				vinc6_isp_sel = <0>;
				vinc6_isp_tx_ch = <0>;
				vinc6_tdm_rx_sel = <0>;
				vinc6_rear_sensor_sel = <0>;
				vinc6_front_sensor_sel = <0>;
				vinc6_sensor_list = <0>;
				status = "disabled";
			};

			vinc13:vinc@7 {
				vinc7_csi_sel = <2>;
				vinc7_mipi_sel = <0xff>;
				vinc7_isp_sel = <0>;
				vinc7_isp_tx_ch = <0>;
				vinc7_tdm_rx_sel = <0>;
				vinc7_rear_sensor_sel = <0>;
				vinc7_front_sensor_sel = <0>;
				vinc7_sensor_list = <0>;
				status = "disabled";
			};

			vinc20:vinc@8 {
				vinc8_csi_sel = <0>;
				vinc8_mipi_sel = <0>;
				vinc8_isp_sel = <0>;
				vinc8_isp_tx_ch = <0>;
				vinc8_tdm_rx_sel = <0>;
				vinc8_rear_sensor_sel = <0>;
				vinc8_front_sensor_sel = <0>;
				vinc8_sensor_list = <0>;
				work_mode = <1>;
				status = "okay";
			};

			vinc21:vinc@9 {
				vinc9_csi_sel = <2>;
				vinc9_mipi_sel = <0xff>;
				vinc9_isp_sel = <0>;
				vinc9_isp_tx_ch = <0>;
				vinc9_tdm_rx_sel = <0>;
				vinc9_rear_sensor_sel = <0>;
				vinc9_front_sensor_sel = <0>;
				vinc9_sensor_list = <0>;
				status = "disabled";
			};

			vinc22:vinc@10 {
				vinc10_csi_sel = <2>;
				vinc10_mipi_sel = <0xff>;
				vinc10_isp_sel = <0>;
				vinc10_isp_tx_ch = <0>;
				vinc10_tdm_rx_sel = <0>;
				vinc10_rear_sensor_sel = <0>;
				vinc10_front_sensor_sel = <0>;
				vinc10_sensor_list = <0>;
				status = "disabled";
			};

			vinc23:vinc@11 {
				vinc11_csi_sel = <2>;
				vinc11_mipi_sel = <0xff>;
				vinc11_isp_sel = <0>;
				vinc11_isp_tx_ch = <0>;
				vinc11_tdm_rx_sel = <0>;
				vinc11_rear_sensor_sel = <0>;
				vinc11_front_sensor_sel = <0>;
				vinc11_sensor_list = <0>;
				status = "disabled";
			};

			vinc30:vinc@12 {
				vinc12_csi_sel = <0>;
				vinc12_mipi_sel = <0x0>;
				vinc12_isp_sel = <0>;
				vinc12_isp_tx_ch = <0>;
				vinc12_tdm_rx_sel = <0>;
				vinc12_rear_sensor_sel = <0>;
				vinc12_front_sensor_sel = <0>;
				vinc12_sensor_list = <0>;
				work_mode = <0x1>;
				status = "okay";
			};

			vinc31:vinc@13 {
				vinc13_csi_sel = <2>;
				vinc13_mipi_sel = <0xff>;
				vinc13_isp_sel = <0>;
				vinc13_isp_tx_ch = <0>;
				vinc13_tdm_rx_sel = <0>;
				vinc13_rear_sensor_sel = <0>;
				vinc13_front_sensor_sel = <0>;
				vinc13_sensor_list = <0>;
				status = "disabled";
			};

			vinc32:vinc@14 {
				vinc14_csi_sel = <2>;
				vinc14_mipi_sel = <0xff>;
				vinc14_isp_sel = <0>;
				vinc14_isp_tx_ch = <0>;
				vinc14_tdm_rx_sel = <0>;
				vinc14_rear_sensor_sel = <0>;
				vinc14_front_sensor_sel = <0>;
				vinc14_sensor_list = <0>;
				status = "disabled";
			};

			vinc33:vinc@15 {
				vinc15_csi_sel = <2>;
				vinc15_mipi_sel = <0xff>;
				vinc15_isp_sel = <0>;
				vinc15_isp_tx_ch = <0>;
				vinc15_tdm_rx_sel = <0>;
				vinc15_rear_sensor_sel = <0>;
				vinc15_front_sensor_sel = <0>;
				vinc15_sensor_list = <0>;
				status = "disabled";
			};*/
		};

2、将模块放到板上insmod。可以出来/dev/video0节点

Octops:/server/camera# ls
csi_test_mplane          v4l2_demo                videobuf2-v4l2.ko
da380.ko                 videobuf2-core.ko        vin_io.ko
gc2053_mipi.ko           videobuf2-dma-contig.ko  vin_v4l2.ko
ism.sh                   videobuf2-memops.ko
Octops:/server/camera#
Octops:/server/camera# cat ism.sh
insmod videobuf2-core.ko
insmod videobuf2-memops.ko
insmod videobuf2-dma-contig.ko
insmod videobuf2-v4l2.ko
insmod vin_io.ko
insmod gc2053_mipi.ko
insmod  vin_v4l2.ko
Octops:/server/camera# ./ism.sh
[   90.451429] [VIN_WARN]sensor_helper_probe: cannot get sensor0_cameravdd supply, setting it to NULL!
Octops:/server/camera#
Octops:/server/camera# ls -l /dev/video0
crw-rw----    1 root     video      81,   0 Jan  1 01:51 /dev/video0
Octops:/server/camera#

3、执行csi_test_mplane如下：

Octops:/server/camera# ./csi_test_mplane
open /dev/video0 fd = 3
resolution got from sensor = 640*480 num_planes = 3
VIDIOC_STREAMON ok
file length = 307200 76800 76800
file start = 0xb6eee000 0xb6edb000 0xb6ec8000
Got signal 11, exiting ...
[   36.265546] [VIN_ERR]scaler0 channel ID nember is lost!!!
Octops:/server/camera#
Octops:/server/camera#
Octops:/server/camera# ./csi_test_mplane 0 0 1920 1080 /server 1 20000 60 0
open /dev/video0 fd = 3
resolution got from sensor = 1920*1080 num_planes = 3
VIDIOC_STREAMON ok
Octops:/server/camera#
Octops:/server/camera# ./csi_test_mplane 0
please select the video device: 0-video0 1-video1 ......
0
please select the camera: 0-dev0 1-dev1 ......
0
please input the resolution: width height......
1920
1080
please input the frame saving path......
/server
please input the test mode: 0~3......
1
please input the test_cnt: >=1......
20
open /dev/video0 fd = 3
resolution got from sensor = 1920*1080 num_planes = 3
VIDIOC_STREAMON ok
[  107.543269] [VIN_ERR]scaler0 channel ID nember is lost!!!
VIDIOC_STREAMOFF ok
mode 1 test done at the 0 time!!
time cost 1.221462(s)

4、i2cdetect测试，发现器件地址对不上

Octops:/server/camera# i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

问题：
1、想确认下，4land的摄像头，需要专门指定4land吗？怎么指定？
2、出现了video设备是可以说明硬件通了，只需要做软件的调试吗？
3、为什么器件地址会变为原来的一半？
4、有什么办法可以实时预览摄像头吗？

Negro

大家有没有遇到这个情况？求助一下。
Tina的SDK，在tina-v853/out/v853/vision/buildroot/buildroot/target/opt/目录里面添加了一个QT执行文件，大小是2.8M。然后去编译buildroot，不论是./build.sh 编译，还是在buildroot文件目录下直接make，都会发现这个QT执行文件好像被优化了，大小变成2.4M了。但是基本功能没有变化，可以执行起来，就是一些细节上的功能有缺陷。不知道为什么会这样？求助。

Negro

@chengwei_peng
export后查看引脚属性，依旧是spi3功能没变，我再检查一下是不是我的测波形的方法不对，感谢指导。谢谢

Negro

@chengwei_peng
感谢回复。
现在这个测试程序是显示可正常发数据了，但是我用示波器量SPI的时钟，发现一直都是低电压，没有方波，MISO，MOSI，CS0三根线都是一只低电平，我甚至是可以echo 235~238 > /sys/class/gpio/export 导出GPIO并控制IO口输出高低电频。这样是正常的吗？虽然设备节/dev/spidev3.0点出来了，但是总感觉好像这几个IO口没有正确配置成SPI接口。
我用的是buildroot系统。

Negro

将spi_dbi_enable = <1> 注释掉就可以了
照着前边的spi节点写的dts，不知道这个是做什么用的。

Negro

想知道DTS里面的这个参数是什么含义呢？
spi_dbi_enable = <1>;

我是把这个注释掉之后，就正常了。

Negro

spi从设备是20MHz的频率，CS是低电平有效。dts配置如下：

&spi3 {
    clock-frequency = <100000000>;
    pinctrl-0 = <&spi3_pins_a &spi3_pins_b>;
    pinctrl-1 = <&spi3_pins_c>;
    pinctrl-names = "default", "sleep";
    spi_slave_mode = <0>;
    spi_dbi_enable = <1>;
    spi_cs_bitmap = <1>;
    spi3_cs_number = <1>;
    status = "okay";

    spidev@0 {
        device_type = "spidev";
        compatible = "rohm,dh2228fv";
        spi-max-frequency = <100000000>;
        reg = <0x0>;
        spi-cs-high;
        spi-rx-bus-width = <0x8>;
        spi-tx-bus-width = <0x8>;
        status = "okay";
    };
};

...

    spi3_pins_a: spi3@0 {
        allwinner,pins = "PH11", "PH12", "PH13";
        allwinner,pname = "spi3_sclk", "spi3_mosi","spi3_miso";
        allwinner,function = "spi3";
        allwinner,muxsel = <6>; 
        allwinner,drive = <1>; 
        allwinner,pull = <0>; 
    };   

    spi3_pins_b: spi3@1 {
        allwinner,pins = "PH14";
        allwinner,pname = "spi3_cs0";
        allwinner,function = "spi3";
        allwinner,muxsel = <6>; 
        allwinner,drive = <1>; 
        allwinner,pull = <1>;   // only CS should be pulled up
    };   

    spi3_pins_c: spi3@2 {
        allwinner,pins = "PH11", "PH12", "PH13", "PH14";
        allwinner,function = "io_disabled";
        allwinner,muxsel = <0xf>;
        allwinner,drive = <1>; 
        allwinner,pull = <0>; 
    };

测试程序是这样的：

#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/spi/spidev.h>
 
static uint8_t mode = 0; /* SPI通信使用全双工，设置CPOL＝0，CPHA＝0。 */
static uint8_t bits = 8; /* ８ｂiｔｓ读写，MSB first。*/
static uint32_t speed = 20 * 1000 * 1000;/* 设置20M传输速度 */
static uint16_t delay = 0;
static int g_SPI_Fd = 0;

unsigned char r_buf[256];
unsigned char w_buf[256];

int SPI_Write(uint8_t *TxBuf, int len)
{
    int ret;
    int fd = g_SPI_Fd;
 
    ret = write(fd, TxBuf, len);
    if (ret < 0)
        printf("SPI Write error\n");
    else
    {
        int i;
        printf("\nSPI Write [Len:%d]: ", len);
        for (i = 0; i < len; i++)
        {
            if (i % 8 == 0)
            printf("\n\t");
            printf("0x%02X ", TxBuf[i]);
        }
        printf("\n");
    }

    return ret;
}


static int SPI_Open(const char* device)
{
    int fd;
    int ret = 0;

    if (g_SPI_Fd != 0) /* 设备已打开 */
        return 0xF1;

    fd = open(device, O_RDWR);
    if (fd < 0)
        printf("can't open device");
    else
        printf("SPI - Open Succeed. Start Init SPI...\n");

    g_SPI_Fd = fd;
    /*
     * spi mode
     */
    ret = ioctl(fd, SPI_IOC_WR_MODE, &mode);
    if (ret == -1)
        printf("can't set spi mode");
      ret = ioctl(fd, SPI_IOC_RD_MODE, &mode);
    if (ret == -1)
        printf("can't get spi mode");

    /*
     * bits per word
     */
    ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits);
    if (ret == -1)
        printf("can't set bits per word");

    ret = ioctl(fd, SPI_IOC_RD_BITS_PER_WORD, &bits);
    if (ret == -1)
        printf("can't get bits per word");

    /*
     * max speed hz
     */
    ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed);
    if (ret == -1)
        printf("can't set max speed hz");

    ret = ioctl(fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed);
    if (ret == -1)
        printf("can't get max speed hz");

    printf("spi mode: %d\n", mode);
    printf("bits per word: %d\n", bits);
    printf("max speed: %d KHz (%d MHz)\n", speed / 1000, speed / 1000 / 1000);

    return ret;
}


int SPI_Close(void)
{
    int fd = g_SPI_Fd;
        if (fd == 0) /* SPI是否已经打开*/
        return 0;
    close(fd);
    g_SPI_Fd = 0;

    return 0;
}


int main(int argc, char* argv[])
{
    char *str="hello";
    int len = 5;
    SPI_Open("/dev/spidev3.0");
    SPI_Write(str, len);
    SPI_Close();
    return 0;
}

交叉编译后放到板子上运行，会出现这样的超时报错，想问问看各位有没有什么思路解决，十分感谢。

root:/root# ./spi
SPI - Open Succeed. Start Init S[  586.085918] spi_set_clk()459 - set spi clock 100000000, mclk 20000000
PI...
[  586.095997] spi_set_clk()459 - set spi clock 100000000, mclk 100000000
[  586.104382] spi_set_clk()459 - set spi clock 20000000, mclk 100000000
spi mode: 0[  586.111792] sunxi_spi_transfer_one()1433 - [spi3] begin transfer, txbuf df6ab000, rxbuf   (null), len 5

bits per word: 8
max speed: 2[  586.123289] spi_set_clk()459 - set spi clock 20000000, mclk 20000000
0000 KHz (20 MHz)
[  586.133363] sunxi_spi_mode_check()1166 - [spi3] Single mode Half duplex tx
[  586.142730] spi_config_dbi()376 - DBI mode configurate : 40
[  586.148979] sunxi_spi_xfer()1376 - [spi3] tx -> by ahb
[  586.155060] sunxi_spi_cpu_writel()1250 - t->len = 5
[  586.160602] 000: 68 65 6c 6c 6f
[  596.275684] sunxi_spi_cpu_writel()1276 - [spi3] cpu transfer data time out!
[  596.283516] sunxi_spi_transfer_one()1462 - [spi3] dump reg:
[  596.289762] 0x04028000: 00010001 00000098 00002104 00000000
[  596.296582] 0x04028010: 00000000 00000012 00200020 000f0000
[  596.303189] 0x04028020: 00000000 00000002 00002000 00000000
[  596.309535] 0x04028030: 00000005 00000005 00000005 00000000
[  601.351828] sunxi_spi_transfer_one()1471 - [spi3] xfer timeout
[  601.358391] spidev spi3.0: SPI transfer failed: -1
[  601.364475] spi_master spi3: failed to transfer one message from queue
SPI Write error

启动时的spi log

[    0.650370] sunxi_spi_probe()2251 - [spi3] SPI DBI INTERFACE
[    0.656168] sunxi_spi_probe()2260 - [spi3] SPI MASTER MODE
[    0.661799] sunxi_spi_resource_get()1909 - Failed to get sample mode
[    0.668268] sunxi_spi_resource_get()1914 - Failed to get sample delay
[    0.674824] sunxi_spi_resource_get()1918 - sample_mode:aaaaffff sample_delay:aaaaffff
[    0.682785] spi3 supply spi not found, using dummy regulator
[    0.688624] sunxi_spi_request_gpio()1884 - [spi3] Pinctrl init spi3
[    0.695128] sunxi_spi_clk_init()1955 - [spi3] mclk 100000000
[    0.701466] spi_master spi3: spi-tx-bus-width 8 not supported
[    0.707476] spi_master spi3: spi-rx-bus-width 8 not supported
[    0.713865] sunxi_spi_probe()2340 - [spi3]: driver probe succeed, base e0834000, irq 295

Negro

@sunchipv 在 V853的QT被random进程阻塞了中说：

haveged -w 1024 -v 1

可以了，谢谢。我将这个命令写到 profile 里面，开机后熵池可以到2000+，可以很快的启动我的QT了。

我也找到了rgnd工具，可以执行rngd -r /dev/urandom -o /dev/random，熵值可以到4000+

Negro

实在找不到办法，我就直接把openwrt/include/package-ipkg.mk文件中的判断给删掉了，然后也编译出了固件，系统可以正常使用。就是QT现在启动的时候会被ramdon进程阻塞，开机自动启动QT的话，要等好久。

Negro

v853编译出来的Openwrt固件，开机自动运行QT，但是要等好久页面才有显示。看到log，应该是被random给阻塞住了。这里也看到有同样的问题：https://bbs.aw-ol.com/topic/449/发现qt应用程序居然要等随机数就绪才能跑

我在menuconfig里面设置了haveged了，但是还是一样的现象。这个有什么办法可以解决吗？我想开机后我的QT可以快速运行起来。

这个是文件系统中队haveged的配置

NegroLV 5

@Negro

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