From: Sjur Brændeland <sjur.brandel...@stericsson.com>
Add information so rproc-serial can be easily recogniced
from user space. Add the following information to uevent:
DRIVER=virtio_console|virtio_rproc_serial
INTERFACE=grand-parent/parent/name
Signed-off-by: Sjur Brændeland <sjur.brandel...@stericsson.com>
---
Hi,
I need some way to identify the major/minor number for
the rproc-serial device, given the udev event.
Review comments are welcomed.
Thanks,
Sjur
drivers/char/virtio_console.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 031be0b..96c5ed9 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2190,6 +2190,27 @@ static struct virtio_driver virtio_rproc_serial = {
.remove = virtcons_remove,
};
+int class_virtio_ports_uevent(struct device *_dev, struct kobj_uevent_env *env)
+{
+ struct port *port = dev_get_drvdata(_dev);
+ struct device *dev;
+ int err;
+
+ if (!port || !port->portdev || !port->portdev->vdev)
+ return 0;
+
+ dev = &port->portdev->vdev->dev;
+ err = add_uevent_var(env, "DRIVER=%s", dev->driver->name);
+ if (err)
+ return err;
+
+ return add_uevent_var(env, "INTERFACE=%s/%s/%s",
+ dev->parent->parent ?
+ dev_name(dev->parent->parent) : "",
+ dev->parent ? dev_name(dev->parent) : "",
+ dev_name(dev));
+}
+
static int __init init(void)
{
int err;
@@ -2201,6 +2222,7 @@ static int __init init(void)
return err;
}
+ pdrvdata.class->dev_uevent = class_virtio_ports_uevent;
pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL);
if (!pdrvdata.debugfs_dir) {
pr_warning("Error %ld creating debugfs dir for virtio-ports\n",
--
1.7.5.4
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