Takashi Iwai wrote:
> Martin Langer wrote:
> > usb hotplug works perfect if my usbmidi client isn't aconnected to another
> > midi client. But the aconnected usb midi device still remains in the clients
> > list, after hotpluging out.
>
> yep, when the connection exists, the connected devices (on both
> sides) are regarded as active.
The sequencer design allows asynchronous removal of clients.
--- alsa-kernel/core/seq/seq_device.c.orig Wed Aug 14 18:11:13 2002
+++ alsa-kernel/core/seq/seq_device.c Thu Nov 28 23:05:47 2002
@@ -92,6 +92,7 @@
static int snd_seq_device_free(snd_seq_device_t *dev);
static int snd_seq_device_dev_free(snd_device_t *device);
static int snd_seq_device_dev_register(snd_device_t *device);
+static int snd_seq_device_dev_disconnect(snd_device_t *device);
static int snd_seq_device_dev_unregister(snd_device_t *device);
static int init_device(snd_seq_device_t *dev, ops_list_t *ops);
@@ -166,6 +167,7 @@
static snd_device_ops_t dops = {
.dev_free = snd_seq_device_dev_free,
.dev_register = snd_seq_device_dev_register,
+ .dev_disconnect = snd_seq_device_dev_disconnect,
.dev_unregister = snd_seq_device_dev_unregister
};
@@ -265,6 +267,22 @@
init_device(dev, ops);
unlock_driver(ops);
+ return 0;
+}
+
+/*
+ * disconnect the device
+ */
+static int snd_seq_device_dev_disconnect(snd_device_t *device)
+{
+ snd_seq_device_t *dev = snd_magic_cast(snd_seq_device_t, device->device_data,
+return -ENXIO);
+ ops_list_t *ops;
+
+ ops = find_driver(dev->id, 0);
+ if (ops == NULL)
+ return -ENOENT;
+
+ free_device(dev, ops);
return 0;
}
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