other versions
COPY_TO_USER_FROMIO(9) | Management of Cards and Device | COPY_TO_USER_FROMIO(9) |
NAME¶
copy_to_user_fromio - copy data from mmio-space to user-spaceSYNOPSIS¶
int
copy_to_user_fromio(void __user * dst,
const volatile void __iomem * src,
size_t count);
ARGUMENTS¶
dstthe destination pointer on user-space
src
the source pointer on mmio
count
the data size to copy in bytes
DESCRIPTION¶
Copies the data from mmio-space to user-space.RETURN¶
Zero if successful, or non-zero on failure.COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |