[PATCH] pcmcia: hotplug event for PCMCIA socket devices

Generate hotplug event for PCMCIA sockets being registered.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 48e4f04530d8..fec9e0304738 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -1866,6 +1866,21 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
         return ret;
 } /* insert_card */
 
+static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
+                                int num_envp, char *buffer, int buffer_size)
+{
+        struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
+        int i = 0, length = 0;
+
+        if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
+                                &length, "SOCKET_NO=%u", s->sock))
+                return -ENOMEM;
+
+        envp[i] = NULL;
+
+        return 0;
+}
+
 /*======================================================================
 
     OS-specific module glue goes here
@@ -1895,6 +1910,7 @@ EXPORT_SYMBOL(pcmcia_parse_events);
 
 struct class pcmcia_socket_class = {
         .name = "pcmcia_socket",
+        .hotplug = pcmcia_socket_hotplug,
         .release = pcmcia_release_socket,
 };
 EXPORT_SYMBOL(pcmcia_socket_class);