{"id":4186,"date":"2022-12-20T17:39:39","date_gmt":"2022-12-20T20:39:39","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/intro-man9\/"},"modified":"2022-12-20T17:39:39","modified_gmt":"2022-12-20T20:39:39","slug":"intro-man9","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/intro-man9\/","title":{"rendered":"intro (man9)"},"content":{"rendered":"

intro<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
AVAILABILITY<\/a>
SEE ALSO<\/a>
AUTHORS<\/a>
BUGS<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

intro \u2212 Introduction to kernel interface<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

#include <\/b><\/p>\n

DESCRIPTION <\/a> <\/h2>\n

This section documents the functions available to device driver writers and kernel level modules. The functions are of interest mainly to device driver writers, although anyone considering running code in linux kernel mode may need to be familiar with these interfaces.<\/p>\n

Some of the functions of the DDI exist only in certain versions of the kernel. Use the LINUX_VERSION_CODE<\/b> macro to test for specific versions of the kernel. For example, to use a feature that is new to 2.1, say:<\/p>\n

#if LINUX_VERSION_CODE >= 0x020100
… use new stuff …
#else
… do it the old way …
#endif<\/p>\n

The following is a list of the man pages, divided roughly into function groups.<\/p>\n

Kernel Functions<\/b>
These are general kernel functions.<\/p>\n\n\n
<\/td>\n\n

MAJOR<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

MOD_INC_USE_COUNT<\/p>\n\n\n
<\/td>\n\n

cli<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

init_bh
init_module
kmalloc
poll_wait<\/p>\n\n\n
<\/td>\n\n

printk<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

probe_irq_on
register_chrdev
register_console
request_irq
save_flags
sleep_on
wake_up<\/p>\n

\/proc functions<\/b>
These functions relate to manipulation of the \/proc<\/b> filesystem.<\/p>\n

proc_dir_entry
proc_net_register
proc_scsi_register<\/p>\n

BIOS32 functions<\/b>
These are specific to PCI (BIOS32) support.<\/p>\n

pcibios_find_class
pcibios_present
pcibios_read_config_byte
pcibios_read_config_dword
pcibios_read_config_word
pcibios_strerror
pcibios_write_config_byte
pcibios_write_config_dword
pcibios_write_config_word<\/p>\n

VM functions<\/b>
These are functions that support manipulating the virtual memory subsystem.<\/p>\n\n\n
<\/td>\n\n

MAP_NR<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

mem_map_reserve<\/p>\n

Network Functions<\/b><\/p>\n

skb_dequeue
skb_insert
skb_peek
skb_queue_empty
skb_queue_head
skb_queue_head_init
skb_queue_len
skb_queue_tail
skb_unlink<\/p>\n

AVAILABILITY <\/a> <\/h2>\n

Each man page attempts to list the kernel versions where the function is available. If the form of the function changes, this section tells when the described form applies.<\/p>\n

SEE ALSO <\/a> <\/h2>\n

This section lists other man pages that may be of interest. Also, interesting source files in the linux kernel may be listed here.<\/p>\n

AUTHORS <\/a> <\/h2>\n

Each man page has a section like this one that lists the author(s) who contributed significantly to that page. Other unnamed individuals may also have contributed corrections, editorial, etc.<\/p>\n

Major contributors are (in alphabetical order) Cyrus Durgin , Niel Moore , Keith Owens , Kirk Petersen , and Stephen Williams .<\/p>\n

Editorial, and this intro page, were done by Stephen Williams .<\/p>\n

BUGS <\/a> <\/h2>\n

The living linux kernel is a moving target, and the kernel functions are unique to linux. Therefore, although the editor and contributers make a good effort to be as accurate as possible, errors may exist. The source codes of the linux kernel are the ultimate authority on the behavior of any function and should be considered the final word.<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

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