simple cdev.mht

字符驱动开发详细介绍

Month=3D"12" Day=3D"30"=20
            IsLunarDate=3D"False" IsROCDate=3D"False"><SPAN=20
            lang=3DEN-US>6.1.1</SPAN></st1:chsdate><SPAN lang=3DEN-US>=20
            cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =
=B7=BD=D5=FD=CF=B8=BA=DA=D2=BB=BC=F2=CC=E5; mso-ascii-font-family: =
Arial">=BD=E1=B9=B9=CC=E5</SPAN></FONT></FONT></H3>
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'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=D4=DA</SPAN><SPAN=20
            lang=3DEN-US>Linux 2.6</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=C4=DA=BA=CB=D6=D0=A3=AC=CA=B9=D3=C3</SPAN><SPAN=20
            lang=3DEN-US>cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
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Roman'">=BD=E1=B9=B9=CC=E5=C3=E8=CA=F6=D2=BB=B8=F6=D7=D6=B7=FB=C9=E8=B1=B8=
=A3=AC</SPAN><SPAN=20
            lang=3DEN-US>cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
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</SPAN><SPAN=20
            lang=3DEN-US>6.1</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
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size=3D3><B=20
            style=3D"mso-bidi-font-weight: normal"><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
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Roman'">=B4=FA=C2=EB=C7=E5=B5=A5</SPAN><SPAN=20
            lang=3DEN-US>6.1 cdev</SPAN></B><B=20
            style=3D"mso-bidi-font-weight: normal"><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
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            lang=3DEN-US><o:p></o:p></SPAN></B></FONT></P>
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">1<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN>struct cdev=20
            <o:p></o:p></SPAN></P>
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">2<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; =
</SPAN>{<o:p></o:p></SPAN></P>
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">3<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>struct kobject kobj; /* =
</SPAN><SPAN=20
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LETTER-SPACING: 1pt; mso-ascii-font-family: 'Times New Roman'; =
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            lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: =
1pt">kobject</SPAN><SPAN=20
            style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =CB=CE=CC=E5; =
LETTER-SPACING: 1pt; mso-ascii-font-family: 'Times New Roman'; =
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            lang=3DEN-US style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">=20
            */<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">4<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>struct module *owner;<SPAN =

            style=3D"mso-spacerun: yes">&nbsp;&nbsp;&nbsp; =
</SPAN>/*</SPAN><SPAN=20
            style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =CB=CE=CC=E5; =
LETTER-SPACING: 1pt; mso-ascii-font-family: 'Times New Roman'; =
mso-hansi-font-family: 'Times New =
Roman'">=CB=F9=CA=F4=C4=A3=BF=E9</SPAN><SPAN=20
            lang=3DEN-US style=3D"FONT-SIZE: 9pt; LETTER-SPACING: =
1pt">*/=20
            <o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">5<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>struct file_operations =
*ops;<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN>/*</SPAN><SPAN=20
            style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =CB=CE=CC=E5; =
LETTER-SPACING: 1pt; mso-ascii-font-family: 'Times New Roman'; =
mso-hansi-font-family: 'Times New =
Roman'">=CE=C4=BC=FE=B2=D9=D7=F7=BD=E1=B9=B9=CC=E5</SPAN><SPAN=20
            lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: =
1pt">*/<o:p></o:p></SPAN></P>
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">6<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>struct list_head=20
            list;<o:p></o:p></SPAN></P>
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">7<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>dev_t dev;<SPAN=20
            style=3D"mso-spacerun: =
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
            </SPAN>/*</SPAN><SPAN=20
            style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =CB=CE=CC=E5; =
LETTER-SPACING: 1pt; mso-ascii-font-family: 'Times New Roman'; =
mso-hansi-font-family: 'Times New Roman'">=C9=E8=B1=B8=BA=C5</SPAN><SPAN =

            lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: =
1pt">*/<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">8<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; </SPAN><SPAN=20
            style=3D"mso-tab-count: 1"></SPAN>unsigned int=20
            count;<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">9<SPAN=20
            style=3D"mso-spacerun: yes">&nbsp; =
</SPAN>};<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
            style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT =
size=3D3><SPAN=20
            lang=3DEN-US>cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=BD=E1=B9=B9=CC=E5=B5=C4</SPAN><SPAN=20
            lang=3DEN-US>dev_t</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=B3=C9=D4=B1=B6=A8=D2=E5=C1=CB=C9=E8=B1=B8=BA=C5=A3=AC=CE=AA</SPA=
N><SPAN=20
            lang=3DEN-US>32</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=CE=BB=A3=AC=C6=E4=D6=D0</SPAN><SPAN=20
            lang=3DEN-US>12</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=CE=BB=D6=F7=C9=E8=B1=B8=BA=C5=A3=AC</SPAN><SPAN=20
            lang=3DEN-US>20</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=CE=BB=B4=CE=C9=E8=B1=B8=BA=C5=A1=A3=CA=B9=D3=C3=CF=C2=C1=D0=BA=EA=
=BF=C9=D2=D4=B4=D3</SPAN><SPAN=20
            lang=3DEN-US>dev_t</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=BB=F1=B5=C3=D6=F7=C9=E8=B1=B8=BA=C5=BA=CD=B4=CE=C9=E8=B1=B8=BA=C5=
=A3=BA</SPAN></FONT></P>
            <P class=3DMsoNormal=20
            style=3D"BACKGROUND: silver; MARGIN: 0cm 0cm 0pt; =
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">MAJOR(dev_t=20
            dev)<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
            style=3D"BACKGROUND: silver; MARGIN: 0cm 0cm 0pt; =
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">MINOR(dev_t=20
            dev)<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
            style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT =
size=3D3><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=B6=F8=CA=B9=D3=C3=CF=C2=C1=D0=BA=EA=D4=F2=BF=C9=D2=D4=CD=A8=B9=FD=
=D6=F7=C9=E8=B1=B8=BA=C5=BA=CD=C9=E8=B1=B8=BA=C5=C9=FA=B3=C9</SPAN><SPAN =

            lang=3DEN-US>dev_t</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=A3=BA</SPAN></FONT></P>
            <P class=3DMsoNormal=20
            style=3D"BACKGROUND: silver; MARGIN: 0cm 0cm 0pt; =
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">MKDEV(int =
major, int=20
            minor)<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
            style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT =
size=3D3><SPAN=20
            lang=3DEN-US>cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=BD=E1=B9=B9=CC=E5=B5=C4=C1=ED=D2=BB=B8=F6=D6=D8=D2=AA=B3=C9=D4=B1=
</SPAN><SPAN=20
            lang=3DEN-US>file_operations</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=B6=A8=D2=E5=C1=CB=D7=D6=B7=FB=C9=E8=B1=B8=C7=FD=B6=AF=CC=E1=B9=A9=
=B8=F8=D0=E9=C4=E2=CE=C4=BC=FE=CF=B5=CD=B3=B5=C4=BD=D3=BF=DA=BA=AF=CA=FD=A1=
=A3</SPAN></FONT></P>
            <P class=3DMsoNormal=20
            style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT =
size=3D3><SPAN=20
            lang=3DEN-US>Linux 2.6</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=C4=DA=BA=CB=CC=E1=B9=A9=C1=CB=D2=BB=D7=E9=BA=AF=CA=FD=D3=C3=D3=DA=
=B2=D9=D7=F7</SPAN><SPAN=20
            lang=3DEN-US>cdev</SPAN><SPAN=20
            style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-ascii-font-family: =
'Times New Roman'; mso-hansi-font-family: 'Times New =
Roman'">=BD=E1=B9=B9=CC=E5=A3=BA</SPAN></FONT></P>
            <P class=3DMsoNormal=20
            style=3D"BACKGROUND: silver; MARGIN: 0cm 0cm 0pt; =
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            align=3Dleft><SPAN lang=3DEN-US=20
            style=3D"FONT-SIZE: 9pt; LETTER-SPACING: 1pt">void =
cdev_init(struct=20
            cdev *, struct file_operations *);<o:p></o:p></SPAN></P>
            <P class=3DMsoNormal=20
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