<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    I don't use systemd on my arm linux board. I use init.<br>
    My system is booting with device tree. But, some node<br>
    were destroyed after booting completed. So, when<br>
    I use insmod loading the driver, it would match no<br>
    device.<br>
    <br>
    <div class="moz-cite-prefix">On 2018年06月20日 16:58, Gajjar Akash
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAAqBNVzA7S-i6FzuCB2-4Uvj11Hb=eoKaEiuDdZkeJTOr1WS0w@mail.gmail.com">
      <div dir="auto"><span style="font-family:sans-serif">Hi there, </span>
        <div dir="auto" style="font-family:sans-serif"><br>
        </div>
        <div dir="auto" style="font-family:sans-serif">If you are using
          systemd, you can make your own Target like early.target and
          load modules without udev.</div>
        <div dir="auto" style="font-family:sans-serif"><br>
        </div>
        <div dir="auto" style="font-family:sans-serif">But you need to
          load modules without device tree, I guess that's not possible.</div>
        <div dir="auto" style="font-family:sans-serif"><br>
        </div>
        <div dir="auto" style="font-family:sans-serif">your system is
          booting without device tree?</div>
        <div dir="auto" style="font-family:sans-serif"><br>
        </div>
        <div dir="auto" style="font-family:sans-serif">Thanks,</div>
        <div dir="auto" style="font-family:sans-serif">Akash</div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Wed, Jun 20, 2018, 14:03 kipade <<a
            href="mailto:kipade@163.com" moz-do-not-send="true">kipade@163.com</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">That's a usb
          host driver. As I know, the whole usb subsystem<br>
          initialization would take up to 2 seconds while booting. In<br>
          another word, that will make the system booting time more<br>
          longer. So, I have to build all the usb driver as module and<br>
          insert them latter, when the system was usable.<br>
          <br>
          On 2018年06月20日 16:01, Greg KH wrote:<br>
          > On Wed, Jun 20, 2018 at 02:36:52PM +0800, kipade wrote:<br>
          >> Now, most of kernel device are initialized by its
          driver according by<br>
          >> what described within device tree block. Here, the
          dtb was parsed<br>
          >> and used during kernel booting. If so, I want to load
          a device driver<br>
          >> after kernel booting using insmod, there would be no
          device tree<br>
          >> block present, so, the device would not be configured
          correctly.<br>
          >> so, how to make it usable?<br>
          > Why can you not build it into your kernel?<br>
          ><br>
          ><br>
          > _______________________________________________<br>
          > Kernelnewbies mailing list<br>
          > <a href="mailto:Kernelnewbies@kernelnewbies.org"
            target="_blank" rel="noreferrer" moz-do-not-send="true">Kernelnewbies@kernelnewbies.org</a><br>
          > <a
            href="https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies"
            rel="noreferrer noreferrer" target="_blank"
            moz-do-not-send="true">https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies</a><br>
          <br>
          <br>
          _______________________________________________<br>
          Kernelnewbies mailing list<br>
          <a href="mailto:Kernelnewbies@kernelnewbies.org"
            target="_blank" rel="noreferrer" moz-do-not-send="true">Kernelnewbies@kernelnewbies.org</a><br>
          <a
            href="https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies"
            rel="noreferrer noreferrer" target="_blank"
            moz-do-not-send="true">https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies</a><br>
        </blockquote>
      </div>
    </blockquote>
    <br>
  </body>
</html>