Tài liệu Linux Device Drivers-Chapter 6 : Flow of Time pptx

... extern struct timeval xtime; The current time, as calculated at the last timer tick. #include < ;linux/ time. h> void do_gettimeofday(struct timeval *tv); void get_fast _time( struct timeval *tv); ... interrupt time. #include < ;linux/ timer.h> void init_timer(struct timer_list * timer); This function initializes a newly allocated timer. void add_timer(struct timer_list...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 4 : Debugging Techniques pptx

... eip: c48370c3 *pde = 00000000 Oops: 0002 CPU: 0 EIP: 001 0:[ <c48370c3>] EFLAGS: 000102 86 eax: ffffffea ebx: c2281a20 ecx: c48370c0 edx: c2281a40 esi: 4000c000 edi: 4000c000 ebp: ... 001 0:[ faulty:faulty_write+3/5 76] EFLAGS: 000102 86 eax: ffffffea ebx: c2c55ae0 ecx: c48370c0 edx: c2c55b00 esi: 0804d038 edi: 0804d038 ebp: c2337f8c esp: c2337f8c ds: 0018 es: 0018...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 7 : Getting Hold of Memory doc

... 0:c 262 b000 1:c2193000 rudo% cat /tmp/bigfile > /dev/scullv0; head -5 /proc/scullvmem Device 0: qset 500, order 4, sz 10485 76 item at c4184b80, qset at c71c4000 0:c881a000 1:c882b000 ... different systems: salma% cat /tmp/bigfile > /dev/scullp0; head -5 /proc/scullpmem Device 0: qset 500, order 0, sz 10485 76 item at e00000003e641b40, qset at e00000002...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 10 :Judicious Use of Data Types doc

... information at load time using printk and returns an error (so there's no need to unload it ): kernel: arch Size: char short int long ptr long-long u8 u 16 u32 u64 kernel: sparc64 1 2 4 8 8 8 ... 2 4 8 sparc 1 2 4 4 4 8 1 2 4 8 sparc64 1 2 4 4 4 8 1 2 4 8 kernel: arch Align: char short int long ptr long- long u8 u 16 u32 u64 kernel: sparc64 1 2 4 8 8 8 1 2 4 8 It&apo...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 15 :Overview of Peripheral Buses pdf

... registers: Vendor id: 80 86 Device id: 1223 I/O space enabled: n Memory enabled: y Master enabled: y Revision id (decimal ): 0 Programmer Interface: 00 Class of device: 0400 Header type: 00 ... function device: n Optional registers: Base Address 0: f1000000 Base Address 0 Is I/O: n Base Address 0 is 64 -bits: n Base Address 0 is below-1M: n Base Address 0 is prefe...

Ngày tải lên : 21/01/2014, 07:20

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Tài liệu Linux Device Drivers-Chapter 16 :Physical Layout of the Kernel Source ppt

... Alessandro's description of this mechanism at http://www .linux. it/kerneldocs/sysctl. ipc and lib Chapter 16 :Physical Layout of the Kernel Source So far, we've talked about the Linux kernel from ... back end of the sysctlmechanism, [66 ] and the latter is just a list of EXPORT_SYMBOL declarations. There are several such files all over the kernel, usually one in ea...

Ngày tải lên : 21/01/2014, 07:20

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Tài liệu Linux Device Drivers-Chapter 1 :An Introduction to Device Drivers ppt

... 1 :An Introduction to Device Drivers As the popularity of the Linux system continues to grow, the interest in writing Linux device drivers steadily increases. Most of Linux is independent of ... dissect a few more of the kernel's software interfaces: Chapter 6, " ;Flow of Time& quot; shows how time is managed in the kernel, and Chapter 7, "Getting H...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 2 : Building and Running Modules pptx

... something else. Several software abstractions (such as kernel timers, introduced in Chapter 6, " ;Flow of Time& quot;) run asynchronously as well. Moreover, of course, Linux can run on symmetric ... parameter skull_sval, the parameters could be set at module load time with an insmod command like: insmod skull skull_ival =66 6 skull_sval="the beast" However, befo...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 3: Char Drivers docx

... The Design of scull The first step of driver writing is defining the capabilities (the mechanism) the driver will offer to user programs. Since our " ;device& quot; is part of the 6 lp 7 ... the 6 lp 7 vcs 10 misc 13 input 14 sound 21 sg 180 usb Block devices: 2 fd 8 sd 11 sr 65 sd 66 sd The script to load a module that has been assigned a dyn...

Ngày tải lên : 24/12/2013, 01:17

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Tài liệu Linux Device Drivers-Chapter 5 : Enhanced Char Driver Operations pptx

... copies of the device depending on the process opening it. Clearly this is possible only if the device is not bound to a hardware object; scull is an example of such a "software'' device. ... versions of Linux used 16- bit numbers: the top eight were the "magic'' number associated with the device, and the bottom eight were a sequential number, u...

Ngày tải lên : 24/12/2013, 01:17

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