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debuglog_create.md

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zx_debuglog_create

SUMMARY

Create an object allowing access to the kernel debuglog.

DECLARATION

#include <zircon/syscalls.h>

zx_status_t zx_debuglog_create(zx_handle_t resource,
                               uint32_t options,
                               zx_handle_t* out);

DESCRIPTION

zx_debuglog_create() creates an object allowing access to the kernel debuglog using the zx_debuglog_read() and zx_debuglog_write() syscalls.

If options is set to 0, the returned handle will have the ZX_RIGHT_WRITE right, giving write-only access to the kernel debuglog. If options is set to ZX_LOG_FLAG_READABLE, the returned handle will additionally have ZX_RIGHT_READ, giving read/write access to the kernel debuglog.

RIGHTS

resource must have resource kind ZX_RSRC_KIND_ROOT.

RETURN VALUE

zx_debuglog_create() returns ZX_OK on success, returning a handle to the created object in out.

In the event of failure, a negative error value is returned.

ERRORS

ZX_ERR_INVALID_ARGS options contained a value not understood by the kernel

ZX_ERR_WRONG_TYPE resource was not of the kind ZX_RSRC_KIND_ROOT.

ZX_ERR_NO_MEMORY Failure due to lack of memory.

SEE ALSO