On Wed, Nov 10, 2021 at 10:42:11AM -0800, Rob Clark wrote:
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
>
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Reviewed-by: Petri Latvala <petri.latvala@xxxxxxxxx>
> ---
> v2: Fix headerdoc comments
>
> lib/igt_debugfs.c | 17 +++++++++++++++++
> lib/igt_debugfs.h | 13 +++++++++++++
> 2 files changed, 30 insertions(+)
>
> diff --git a/lib/igt_debugfs.c b/lib/igt_debugfs.c
> index a5bb95ca..dd6f2995 100644
> --- a/lib/igt_debugfs.c
> +++ b/lib/igt_debugfs.c
> @@ -351,6 +351,23 @@ void __igt_debugfs_read(int fd, const char *filename, char *buf, int size)
> close(dir);
> }
>
> +/**
> + * __igt_debugfs_write:
> + * @fd: the drm device file fd
> + * @filename: file name
> + * @buf: buffer to be written to the debugfs file
> + * @size: size of the buffer
> + *
> + * This function opens the debugfs file, writes it, then closes the file.
> + */
> +void __igt_debugfs_write(int fd, const char *filename, const char *buf, int size)
> +{
> + int dir = igt_debugfs_dir(fd);
> +
> + igt_sysfs_write(dir, filename, buf, size);
> + close(dir);
> +}
> +
> /**
> * igt_debugfs_search:
> * @filename: file name
> diff --git a/lib/igt_debugfs.h b/lib/igt_debugfs.h
> index d43ba6c6..b4867681 100644
> --- a/lib/igt_debugfs.h
> +++ b/lib/igt_debugfs.h
> @@ -40,6 +40,7 @@ int igt_debugfs_pipe_dir(int device, int pipe, int mode);
>
> int igt_debugfs_open(int fd, const char *filename, int mode);
> void __igt_debugfs_read(int fd, const char *filename, char *buf, int size);
> +void __igt_debugfs_write(int fd, const char *filename, const char *buf, int size);
> int igt_debugfs_simple_read(int dir, const char *filename, char *buf, int size);
> bool igt_debugfs_search(int fd, const char *filename, const char *substring);
>
> @@ -54,6 +55,18 @@ bool igt_debugfs_search(int fd, const char *filename, const char *substring);
> #define igt_debugfs_read(fd, filename, buf) \
> __igt_debugfs_read(fd, (filename), (buf), sizeof(buf))
>
> +/**
> + * igt_debugfs_write:
> + * @fd: the drm device file fd
> + * @filename: name of the debugfs file
> + * @buf: buffer to be written to the debugfs file
> + *
> + * This is just a convenience wrapper for __igt_debugfs_write. See its
> + * documentation.
> + */
> +#define igt_debugfs_write(fd, filename, buf) \
> + __igt_debugfs_write(fd, (filename), (buf), sizeof(buf))
> +
> /*
> * Pipe CRC
> */
> --
> 2.31.1
>
