USER_REGSET_GET_FN(9) Machine State USER_REGSET_GET_FN(9)NAMEuser_regset_get_fn - type of get function in struct user_regset
SYNOPSIS
typedef int user_regset_get_fn(struct task_struct * target,
const struct user_regset * regset,
unsigned int pos, unsigned int count,
void * kbuf, void __user * ubuf);
ARGUMENTS
target
thread being examined
regset
regset being examined
pos
offset into the regset data to access, in bytes
count
amount of data to copy, in bytes
kbuf
if not NULL, a kernel-space pointer to copy into
ubuf
if kbuf is NULL, a user-space pointer to copy into
DESCRIPTION
Fetch register values. Return 0 on success; -EIO or -ENODEV are usual
failure returns. The pos and count values are in bytes, but must be
properly aligned. If kbuf is non-null, that buffer is used and ubuf is
ignored. If kbuf is NULL, then ubuf gives a userland pointer to access
directly, and an -EFAULT return value is possible.
Kernel Hackers Manual 2.6. November 2013 USER_REGSET_GET_FN(9)