PCI_READ_ROM(9) Hardware Interfaces PCI_READ_ROM(9)NAME
pci_read_rom - read a PCI ROM
ssize_t pci_read_rom(struct file * filp, struct kobject * kobj, struct bin_attribute * bin_attr, char * buf, loff_t off, size_t count);
kernel object handle
struct bin_attribute for this file
where to put the data we read from the ROM
number of bytes to read
Put count bytes starting at off into buf from the ROM in the PCI device corresponding to kobj.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 PCI_READ_ROM(9)
Check Out this Related Man Page
PREAD(2) Linux Programmer's Manual PREAD(2)NAME
pread, pwrite - read from or write to a file descriptor at a given offset
#define _XOPEN_SOURCE 500
ssize_t pread(int fd, void *buf, size_t count, off_t offset);
ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset);
pread() reads up to count bytes from file descriptor fd at offset offset (from the start of the file) into the buffer starting at buf. The
file offset is not changed.
pwrite() writes up to count bytes from the buffer starting at buf to the file descriptor fd at offset offset. The file offset is not
The file referenced by fd must be capable of seeking.
On success, the number of bytes read or written is returned (zero indicates that nothing was written, in the case of pwrite(), or end of
file, in the case of pread()), or -1 on error, in which case errno is set to indicate the error.
pread() can fail and set errno to any error specified for read(2) or lseek(2). pwrite() can fail and set errno to any error specified for
write(2) or lseek(2).
The pread() and pwrite() system calls were added to Linux in version 2.1.60; the entries in the i386 system call table were added in
2.1.69. C library support (including emulation using lseek(2) on older kernels without the system calls) was added in glibc 2.1.
SEE ALSO lseek(2), read(2), write(2), feature_test_macros(7)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2008-12-03 PREAD(2)
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