The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
nand_block_checkbad – [GENERIC] Check if a block is marked bad Synopsis int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int allowbbt); Arguments mtd MTD device structure ofs offset from device start allowbbt 1, if its allowed to access the bbt area Description Check, if the block is bad. Either by reading the bad block table or calling…
nand_block_bad – [DEFAULT] Read bad block marker from the chip Synopsis int nand_block_bad(struct mtd_info *mtd, loff_t ofs); Arguments mtd MTD device structure ofs offset from device start Description Check, if the block is bad. Author Thomas Gleixner <tglx [at] linutronix.de> Author. Copyright
mutex_unlock – release the mutex Synopsis void __sched mutex_unlock(struct mutex *lock); Arguments lock the mutex to be released Description Unlock a mutex that has been locked by this task previously. This function must not be used in interrupt context. Unlocking of a not locked mutex is not allowed. This function is similar to (but not…
mutex_trylock – try to acquire the mutex, without waiting Synopsis int __sched mutex_trylock(struct mutex *lock); Arguments lock the mutex to be acquired Description Try to acquire the mutex atomically. Returns 1 if the mutex has been acquired successfully, and 0 on contention. Note this function follows the spin_trylock convention, so it is negated from the…
mutex_lock_interruptible – acquire the mutex, interruptible Synopsis int __sched mutex_lock_interruptible(struct mutex *lock); Arguments lock the mutex to be acquired Description Lock the mutex like mutex_lock, and return 0 if the mutex has been acquired or sleep until the mutex becomes available. If a signal arrives while waiting for the lock then this function returns -EINTR….
mutex_lock – acquire the mutex Synopsis void __sched mutex_lock(struct mutex *lock); Arguments lock the mutex to be acquired Description Lock the mutex exclusively for this task. If the mutex is not available right now, it will sleep until it can get it. The mutex must later on be released by the same task that acquired…
mutex_is_locked – is the mutex locked Synopsis int mutex_is_locked(struct mutex *lock); Arguments lock the mutex to be queried Description Returns 1 if the mutex is locked, 0 if unlocked. Author Rusty Russell <rusty [at] rustcorp.com.au> Author. Copyright
mutex_init – initialize the mutex Synopsis mutex_init(mutex); Arguments mutex the mutex to be initialized Description Initialize the mutex to unlocked state. It is not allowed to initialize an already locked mutex. Author Rusty Russell <rusty [at] rustcorp.com.au> Author. Copyright
mpage_writepages – walk the list of dirty pages of the given address space & writepage all of them Synopsis int mpage_writepages(struct address_space *mapping, struct writeback_control *wbc, get_block_t get_block); Arguments mapping address space structure to write wbc subtract the number of written pages from *wbc->nr_to_write get_block the filesystem’s block mapper function. If this is NULL then…
mpage_readpages – populate an address space with some pages & start reads against them Synopsis int mpage_readpages(struct address_space *mapping, struct list_head *pages, unsigned nr_pages, get_block_t get_block); Arguments mapping the address_space pages The address of a list_head which contains the target pages. These pages have their ->index populated and are otherwise uninitialised. The page at pages->prev…
module_w1_family – Helper macro for registering a 1-Wire families Synopsis module_w1_family(__w1_family); Arguments __w1_family w1_family struct Description Helper macro for 1-Wire families which do not do anything special in module init/exit. This eliminates a lot of boilerplate. Each module may only use this macro once, and calling it replaces module_init and module_exit Author David Fries <David…
module_usb_driver – Helper macro for registering a USB driver Synopsis module_usb_driver(__usb_driver); Arguments __usb_driver usb_driver struct Description Helper macro for USB drivers which do not do anything special in module init/exit. This eliminates a lot of boilerplate. Each module may only use this macro once, and calling it replaces module_init and module_exit Copyright
module_usb_composite_driver – Helper macro for registering a USB gadget composite driver Synopsis module_usb_composite_driver(__usb_composite_driver); Arguments __usb_composite_driver usb_composite_driver struct Description Helper macro for USB gadget composite drivers which do not do anything special in module init/exit. This eliminates a lot of boilerplate. Each module may only use this macro once, and calling it replaces module_init and module_exit…
modecpy – Prepare response for MODE SENSE Synopsis void modecpy(u8 *dest, const u8 *src, int n, bool changeable); Arguments dest output buffer src data being copied n length of mode page changeable whether changeable parameters are requested Description Generate a generic MODE SENSE page for either current or changeable parameters. LOCKING: None. Author Jeff Garzik…
misc_register – register a miscellaneous device Synopsis int misc_register(struct miscdevice *misc); Arguments misc device structure Description Register a miscellaneous device with the kernel. If the minor number is set to MISC_DYNAMIC_MINOR a minor number is assigned and placed in the minor field of the structure. For other cases the minor number requested is used. The…
misc_deregister – unregister a miscellaneous device Synopsis void misc_deregister(struct miscdevice *misc); Arguments misc device to unregister Description Unregister a miscellaneous device that was previously successfully registered with misc_register. Copyright
memzero_explicit – Fill a region of memory (e.g. sensitive keying data) with 0s. Synopsis void memzero_explicit(void *s, size_t count); Arguments s Pointer to the start of the area. count The size of the area. Note usually using memset is just fine (!), but in cases where clearing out _local_ data at the end of a…
memset – Fill a region of memory with the given value Synopsis void *memset(void *s, int c, size_t count); Arguments s Pointer to the start of the area. c The byte to fill the area with count The size of the area. Description Do not use memset to access IO space, use memset_io instead. Copyright
memscan – Find a character in an area of memory. Synopsis void *memscan(void *addr, int c, size_t size); Arguments addr The memory area c The byte to search for size The size of the area. Description returns the address of the first occurrence of c, or 1 byte past the area if c is not…
mempool_resize – resize an existing memory pool Synopsis int mempool_resize(mempool_t *pool, int new_min_nr); Arguments pool pointer to the memory pool which was allocated via mempool_create. new_min_nr the new minimum number of elements guaranteed to be allocated for this pool. Description This function shrinks/grows the pool. In the case of growing, it cannot be guaranteed that…