add new_id to PCMCIA drivers

PCI drivers have the new_id file in sysfs which allows new IDs to be added
at runtime.  The advantage is to avoid re-compilation of a driver that
works for a new device, but it's ID table doesn't contain the new device.
This mechanism is only meant for testing, after the driver has been tested
successfully, the ID should be added in source code so that new revisions
of the kernel automatically detect the device.

The implementation follows the PCI implementation. The interface is documented
in Documentation/pcmcia/driver.txt. Computations should be done in userspace,
so the sysfs string contains the raw structure members for matching.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index 8c339f5678cf..90ef552c42dd 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -108,6 +108,11 @@ typedef struct dev_node_t {
 struct pcmcia_socket;
 struct config_t;
 
+struct pcmcia_dynids {
+        spinlock_t              lock;
+        struct list_head        list;
+};
+
 struct pcmcia_driver {
         int (*probe)            (struct pcmcia_device *dev);
         void (*remove)          (struct pcmcia_device *dev);
@@ -118,6 +123,7 @@ struct pcmcia_driver {
         struct module           *owner;
         struct pcmcia_device_id *id_table;
         struct device_driver    drv;
+        struct pcmcia_dynids    dynids;
 };
 
 /* driver registration */