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uwb: create a uwb bus type and add in-range peer devices to it

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Documentation/usb/WUSB-Design-overview.txt states that UWB devices seen
by a UWB radio controller are added to /sys/bus/uwb/devices, but this
was not actually being done.  This functionality is needed in order for
UWB peer devices to be enumerated by user mode tools.  This patch
creates a uwb bus type and adds UWB peer devices to it as they are
discovered by the radio controller.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Pugliese 2014-09-16 15:53:08 -05:00 committed by Greg Kroah-Hartman
parent 58e4ab3eb0
commit 848879340a
3 changed files with 19 additions and 4 deletions
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11
drivers/uwb/driver.c
View File

@ -121,9 +121,19 @@ static int __init uwb_subsys_init(void)
result = class_register(&uwb_rc_class);
if (result < 0)
goto error_uwb_rc_class_register;
/* Register the UWB bus */
result = bus_register(&uwb_bus_type);
if (result) {
pr_err("%s - registering bus driver failed\n", __func__);
goto exit_bus;
}
uwb_dbg_init();
return 0;
exit_bus:
class_unregister(&uwb_rc_class);
error_uwb_rc_class_register:
uwb_est_destroy();
error_est_init:
@ -134,6 +144,7 @@ module_init(uwb_subsys_init);
static void __exit uwb_subsys_exit(void)
{
uwb_dbg_exit();
bus_unregister(&uwb_bus_type);
class_unregister(&uwb_rc_class);
uwb_est_destroy();
return;

11
drivers/uwb/lc-dev.c
View File

@ -255,6 +255,12 @@ static struct attribute *uwb_dev_attrs[] = {
};
ATTRIBUTE_GROUPS(uwb_dev);
/* UWB bus type. */
struct bus_type uwb_bus_type = {
.name = "uwb",
.dev_groups = uwb_dev_groups,
};
/**
* Device SYSFS registration
*/
@ -263,10 +269,6 @@ static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev)
struct device *dev;
dev = &uwb_dev->dev;
/* Device sysfs files are only useful for neighbor devices not
local radio controllers. */
if (&uwb_dev->rc->uwb_dev != uwb_dev)
dev->groups = uwb_dev_groups;
dev->parent = parent_dev;
dev_set_drvdata(dev, uwb_dev);
@ -428,6 +430,7 @@ void uwbd_dev_onair(struct uwb_rc *rc, struct uwb_beca_e *bce)
return;
}
uwb_dev_init(uwb_dev); /* This sets refcnt to one, we own it */
uwb_dev->dev.bus = &uwb_bus_type;
uwb_dev->mac_addr = *bce->mac_addr;
uwb_dev->dev_addr = bce->dev_addr;
dev_set_name(&uwb_dev->dev, "%s", macbuf);

1
drivers/uwb/uwb-internal.h
View File

@ -314,6 +314,7 @@ int uwb_radio_force_channel(struct uwb_rc *rc, int channel);
/* -- UWB Sysfs representation */
extern struct class uwb_rc_class;
extern struct bus_type uwb_bus_type;
extern struct device_attribute dev_attr_mac_address;
extern struct device_attribute dev_attr_beacon;
extern struct device_attribute dev_attr_scan;