diff --git a/include/libssh/callbacks.h b/include/libssh/callbacks.h
index b97522f4..d0c24fd9 100644
--- a/include/libssh/callbacks.h
+++ b/include/libssh/callbacks.h
@@ -83,7 +83,7 @@ typedef void (*ssh_log_callback) (ssh_session session, int priority,
  *
  * @param function  The function name calling the logging functions.
  *
- * @param message   The actual message
+ * @param buffer   The actual message
  *
  * @param userdata Userdata to be passed to the callback function.
  */
@@ -117,6 +117,8 @@ typedef void (*ssh_global_request_callback) (ssh_session session,
  * sends back an X11 connection attempt. This is a client-side API
  * @param session current session handler
  * @param userdata Userdata to be passed to the callback function.
+ * @param originator_address    IP address of the machine who sent the request
+ * @param originator_port   port number of the machine who sent the request
  * @returns a valid ssh_channel handle if the request is to be allowed
  * @returns NULL if the request should not be allowed
  * @warning The channel pointer returned by this callback must be closed by the application.
@@ -625,6 +627,7 @@ typedef void (*ssh_channel_signal_callback) (ssh_session session,
  * @brief SSH channel exit status callback. Called when a channel has received an exit status
  * @param session Current session handler
  * @param channel the actual channel
+ * @param exit_status Exit status of the ran command
  * @param userdata Userdata to be passed to the callback function.
  */
 typedef void (*ssh_channel_exit_status_callback) (ssh_session session,
@@ -652,12 +655,13 @@ typedef void (*ssh_channel_exit_signal_callback) (ssh_session session,
 
 /**
  * @brief SSH channel PTY request from a client.
+ * @param session the session
  * @param channel the channel
  * @param term The type of terminal emulation
  * @param width width of the terminal, in characters
  * @param height height of the terminal, in characters
  * @param pxwidth width of the terminal, in pixels
- * @param pxheight height of the terminal, in pixels
+ * @param pwheight height of the terminal, in pixels
  * @param userdata Userdata to be passed to the callback function.
  * @returns 0 if the pty request is accepted
  * @returns -1 if the request is denied
@@ -671,6 +675,7 @@ typedef int (*ssh_channel_pty_request_callback) (ssh_session session,
 
 /**
  * @brief SSH channel Shell request from a client.
+ * @param session the session
  * @param channel the channel
  * @param userdata Userdata to be passed to the callback function.
  * @returns 0 if the shell request is accepted
@@ -683,6 +688,7 @@ typedef int (*ssh_channel_shell_request_callback) (ssh_session session,
  * @brief SSH auth-agent-request from the client. This request is
  * sent by a client when agent forwarding is available.
  * Server is free to ignore this callback, no answer is expected.
+ * @param session the session
  * @param channel the channel
  * @param userdata Userdata to be passed to the callback function.
  */
@@ -694,7 +700,12 @@ typedef void (*ssh_channel_auth_agent_req_callback) (ssh_session session,
  * @brief SSH X11 request from the client. This request is
  * sent by a client when X11 forwarding is requested(and available).
  * Server is free to ignore this callback, no answer is expected.
+ * @param session the session
  * @param channel the channel
+ * @param single_connection If true, only one channel should be forwarded
+ * @param auth_protocol The X11 authentication method to be used
+ * @param auth_cookie   Authentication cookie encoded hexadecimal
+ * @param screen_number Screen number
  * @param userdata Userdata to be passed to the callback function.
  */
 typedef void (*ssh_channel_x11_req_callback) (ssh_session session,
@@ -706,11 +717,12 @@ typedef void (*ssh_channel_x11_req_callback) (ssh_session session,
                                             void *userdata);
 /**
  * @brief SSH channel PTY windows change (terminal size) from a client.
+ * @param session the session
  * @param channel the channel
  * @param width width of the terminal, in characters
  * @param height height of the terminal, in characters
  * @param pxwidth width of the terminal, in pixels
- * @param pxheight height of the terminal, in pixels
+ * @param pwheight height of the terminal, in pixels
  * @param userdata Userdata to be passed to the callback function.
  * @returns 0 if the pty request is accepted
  * @returns -1 if the request is denied
@@ -723,6 +735,7 @@ typedef int (*ssh_channel_pty_window_change_callback) (ssh_session session,
 
 /**
  * @brief SSH channel Exec request from a client.
+ * @param session the session
  * @param channel the channel
  * @param command the shell command to be executed
  * @param userdata Userdata to be passed to the callback function.
@@ -736,6 +749,7 @@ typedef int (*ssh_channel_exec_request_callback) (ssh_session session,
 
 /**
  * @brief SSH channel environment request from a client.
+ * @param session the session
  * @param channel the channel
  * @param env_name name of the environment value to be set
  * @param env_value value of the environment value to be set
@@ -752,6 +766,7 @@ typedef int (*ssh_channel_env_request_callback) (ssh_session session,
                                             void *userdata);
 /**
  * @brief SSH channel subsystem request from a client.
+ * @param session the session
  * @param channel the channel
  * @param subsystem the subsystem required
  * @param userdata Userdata to be passed to the callback function.
@@ -766,6 +781,8 @@ typedef int (*ssh_channel_subsystem_request_callback) (ssh_session session,
 /**
  * @brief SSH channel write will not block (flow control).
  *
+ * @param session the session
+ *
  * @param channel the channel
  *
  * @param[in] bytes size of the remote window in bytes. Writing as much data
diff --git a/src/agent.c b/src/agent.c
index bb4d35a6..6e3d7d79 100644
--- a/src/agent.c
+++ b/src/agent.c
@@ -160,7 +160,11 @@ static void agent_set_channel(struct ssh_agent_struct *agent, ssh_channel channe
  * The SSH agent channel will be used to authenticate this client using
  * an agent through a channel, from another session. The most likely use
  * is to implement SSH Agent forwarding into a SSH proxy.
+ *
+ * @param session the session
+ *
  * @param[in] channel a SSH channel from another session.
+ *
  * @returns SSH_OK in case of success
  *          SSH_ERROR in case of an error
  */
diff --git a/src/channels.c b/src/channels.c
index 4c6972cb..f2fe39aa 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -3811,4 +3811,4 @@ error:
 
 #endif
 
-/* @} */
+/** @} */
diff --git a/src/client.c b/src/client.c
index 32206081..faf7e7a1 100644
--- a/src/client.c
+++ b/src/client.c
@@ -731,7 +731,7 @@ ssh_session_set_disconnect_message(ssh_session session, const char *message)
  * The session can then be reused to open a new session.
  *
  * @note Note that this function won't close the socket if it was set with
- * @ssh_options_set and SSH_OPTIONS_FD. You're responsible for closing the
+ * ssh_options_set and SSH_OPTIONS_FD. You're responsible for closing the
  * socket. This is new behavior in libssh 0.10.
  *
  * @param[in]  session  The SSH session to use.
diff --git a/src/pki.c b/src/pki.c
index b723cc93..a7c84c5e 100644
--- a/src/pki.c
+++ b/src/pki.c
@@ -229,6 +229,8 @@ enum ssh_keytypes_e ssh_key_type(const ssh_key key)
  *
  * @param[in]  type     The algorithm type to convert.
  *
+ * @param[in] hash_type The hash type to convert
+ *
  * @return              A string for the keytype or NULL if unknown.
  */
 const char *
diff --git a/src/server.c b/src/server.c
index 7e2fbfc1..3658780e 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1217,7 +1217,7 @@ int ssh_execute_message_callbacks(ssh_session session){
 /**
  * @brief Sends a keepalive message to the session
  *
- * @param The session to send the message to
+ * @param session   The session to send the message to
  *
  * @returns SSH_OK
  */
diff --git a/src/socket.c b/src/socket.c
index 41e4858b..7d44c8c5 100644
--- a/src/socket.c
+++ b/src/socket.c
@@ -239,7 +239,7 @@ void ssh_socket_set_connected(ssh_socket s, struct ssh_poll_handle_struct *p)
  * @param p             Poll object this callback belongs to.
  * @param fd            The raw socket.
  * @param revents       The current poll events on the socket.
- * @param userdata      Userdata to be passed to the callback function,
+ * @param v_s           Userdata to be passed to the callback function,
  *                      in this case the socket object.
  *
  * @return              0 on success, < 0 when the poll object has been removed