comedi vmk80xx: support comedi auto-configuration

Add support for automatically associating a vmk8055 device with a
comedi device (previously the user had to use comedi_num_legacy_minors
to reserve device slots and then associate them with vmk8055 devices
using comedi_config).
Tested on multiple K8055s, but not on K8061s.

Signed-off-by: J. Ali Harlow <ali@avrc.city.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 04c085f..3d13ca6 100644 (file)
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -64,6 +64,8 @@ Changelog:
 
 #include "../comedidev.h"
 
+#define BOARDNAME "vmk80xx"
+
 MODULE_AUTHOR("Manuel Gebele <forensixs@gmx.de>");
 MODULE_DESCRIPTION("Velleman USB Board Low-Level Driver");
 MODULE_SUPPORTED_DEVICE("K8055/K8061 aka VM110/VM140");
@@ -1480,6 +1482,8 @@ static int vmk80xx_probe(struct usb_interface *intf,
 
        mutex_unlock(&glb_mutex);
 
+       comedi_usb_auto_config(dev->udev, BOARDNAME);
+
        return 0;
 error:
        mutex_unlock(&glb_mutex);
@@ -1496,6 +1500,8 @@ static void vmk80xx_disconnect(struct usb_interface *intf)
        if (!dev)
                return;
 
+       comedi_usb_auto_unconfig(dev->udev);
+
        mutex_lock(&glb_mutex);
        down(&dev->limit_sem);
 
@@ -1533,10 +1539,16 @@ static struct comedi_driver driver_vmk80xx = {
 
 static int __init vmk80xx_init(void)
 {
+       int retval;
+
        printk(KERN_INFO "vmk80xx: version 0.8.01 "
               "Manuel Gebele <forensixs@gmx.de>\n");
-       usb_register(&vmk80xx_driver);
-       return comedi_driver_register(&driver_vmk80xx);
+
+       retval = comedi_driver_register(&driver_vmk80xx);
+       if (retval < 0)
+               return retval;
+
+       return usb_register(&vmk80xx_driver);
 }
 
 static void __exit vmk80xx_exit(void)