hwi_tag2off()

Return the offset from the start of the hwinfo area of the system page

Synopsis:

#include <hw/sysinfo.h>

unsigned hwi_tag2off( void *tag );

Arguments:

tag

A pointer to a tag in the hwinfo area of the system page.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

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This function is in libc.a, but not in libc.so (in order to save space).

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Description:

Given a pointer to the start of a tag, the hwi_tag2off() function returns the offset, in bytes, from the beginning of the start of the hwinfo section.

Returns:

The offset of the tag, in bytes.

Classification:

QNX Neutrino

See also:

hwi_find_item(), hwi_find_tag(), hwi_off2tag()

“Structure of the system page” in the Customizing Image Startup Programs chapter of Building Embedded Systems