diff --git a/include/osmocom/core/socket.h b/include/osmocom/core/socket.h
index 612b12c..e915f78 100644
--- a/include/osmocom/core/socket.h
+++ b/include/osmocom/core/socket.h
@@ -1,6 +1,10 @@
 #ifndef _OSMOCORE_SOCKET_H
 #define _OSMOCORE_SOCKET_H
 
+/*! \file socket.h
+ *  \brief Osmocom socket convenience functions
+ */
+
 #include <stdint.h>
 
 struct sockaddr;
@@ -10,16 +14,53 @@
 #define OSMO_SOCK_F_BIND	(1 << 1)
 #define OSMO_SOCK_F_NONBLOCK	(1 << 2)
 
+/*! \brief Initialize a socket (including bind/connect)
+ *  \param[in] family Address Family like AF_INET, AF_INET6, AF_UNSPEC
+ *  \param[in] type Socket type like SOCK_DGRAM, SOCK_STREAM
+ *  \param[in] proto Protocol like IPPROTO_TCP, IPPROTO_UDP
+ *  \param[in] host remote host name or IP address in string form
+ *  \param[in] port remote port number in host byte order
+ *  \param[in] flags flags like \ref OSMO_SOCK_F_CONNECT
+ *
+ * This function creates a new socket of the designated \a family, \a
+ * type and \a proto and optionally binds or connects it, depending on
+ * the value of \a flags parameter.
+ */
 int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto,
 		   const char *host, uint16_t port, unsigned int flags);
 
+/*! \brief Initialize a socket and fill \ref osmo_fd
+ *  \param[out] osmocom file descriptor (will be filled in)
+ *  \param[in] family Address Family like AF_INET, AF_INET6, AF_UNSPEC
+ *  \param[in] type Socket type like SOCK_DGRAM, SOCK_STREAM
+ *  \param[in] proto Protocol like IPPROTO_TCP, IPPROTO_UDP
+ *  \param[in] host remote host name or IP address in string form
+ *  \param[in] port remote port number in host byte order
+ *  \param[in] flags flags like \ref OSMO_SOCK_F_CONNECT
+ *
+ * This function creates (and optionall binds/connects) a socket using
+ * \ref osmo_sock_init, but also fills the \a ofd structure.
+ */
 int osmo_sock_init_ofd(struct osmo_fd *ofd, int family, int type, int proto,
 			const char *host, uint16_t port, unsigned int flags);
 
+/*! \brief Initialize a socket and fill \ref sockaddr
+ *  \param[out] ss socket address (will be filled in)
+ *  \param[in] type Socket type like SOCK_DGRAM, SOCK_STREAM
+ *  \param[in] proto Protocol like IPPROTO_TCP, IPPROTO_UDP
+ *  \param[in] flags flags like \ref OSMO_SOCK_F_CONNECT
+ *
+ * This function creates (and optionall binds/connects) a socket using
+ * \ref osmo_sock_init, but also fills the \a ss structure.
+ */
 int osmo_sock_init_sa(struct sockaddr *ss, uint16_t type,
 		      uint8_t proto, unsigned int flags);
 
-/* determine if the given address is a local address */
+/*! \brief Determine if the given address is a local address
+ *  \param[in] addr Socket Address
+ *  \param[in] addrlen Length of socket address in bytes
+ *  \returns 1 if address is local, 0 otherwise.
+ */
 int osmo_sockaddr_is_local(struct sockaddr *addr, unsigned int addrlen);
 
 #endif /* _OSMOCORE_SOCKET_H */