Reviewed-by: Marc-André Lureau <[email protected]>
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
include/chardev/char.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/chardev/char.h b/include/chardev/char.h
index b65e9981c14..df55c7f4e67 100644
--- a/include/chardev/char.h
+++ b/include/chardev/char.h
@@ -263,7 +263,17 @@ struct ChardevClass {
void (*open)(Chardev *chr, ChardevBackend *backend,
bool *be_opened, Error **errp);
- /* write buf to the backend */
+ /**
+ * chr_write: Write data to a character backend
+ * @s: the character backend to write to
+ * @buf: the data to write
+ * @len: the number of bytes to write
+ *
+ * Called with chr_write_lock held.
+ *
+ * Returns: the number of bytes consumed or -1 on error.
+ * On error, %errno is also set as appropriate.
+ */
int (*chr_write)(Chardev *s, const uint8_t *buf, int len);
/*
--
2.51.0
