* Create a platform device object which can have other objects attached
* to it, and which will have attached objects freed when it is released.
*/
-struct platform_device *platform_device_alloc(const char *name, unsigned int id)
+struct platform_device *platform_device_alloc(const char *name, int id)
{
struct platform_object *pa;
pdev->dev.bus = &platform_bus_type;
if (pdev->id != -1)
- snprintf(pdev->dev.bus_id, BUS_ID_SIZE, "%s.%u", pdev->name, pdev->id);
+ snprintf(pdev->dev.bus_id, BUS_ID_SIZE, "%s.%d", pdev->name,
+ pdev->id);
else
strlcpy(pdev->dev.bus_id, pdev->name, BUS_ID_SIZE);
* This function creates a simple platform device that requires minimal
* resource and memory management. Canned release function freeing
* memory allocated for the device allows drivers using such devices
- * to be unloaded iwithout waiting for the last reference to the device
+ * to be unloaded without waiting for the last reference to the device
* to be dropped.
+ *
+ * This interface is primarily intended for use with legacy drivers
+ * which probe hardware directly. Because such drivers create sysfs
+ * device nodes themselves, rather than letting system infrastructure
+ * handle such device enumeration tasks, they don't fully conform to
+ * the Linux driver model. In particular, when such drivers are built
+ * as modules, they can't be "hotplugged".
*/
-struct platform_device *platform_device_register_simple(char *name, unsigned int id,
+struct platform_device *platform_device_register_simple(const char *name, int id,
struct resource *res, unsigned int num)
{
struct platform_device *pdev;
* if the probe was successful, and make sure any forced probes of
* new devices fail.
*/
- spin_lock(&platform_bus_type.klist_drivers.k_lock);
+ spin_lock(&platform_bus_type.p->klist_drivers.k_lock);
drv->probe = NULL;
- if (code == 0 && list_empty(&drv->driver.klist_devices.k_list))
+ if (code == 0 && list_empty(&drv->driver.p->klist_devices.k_list))
retval = -ENODEV;
drv->driver.probe = platform_drv_probe_fail;
- spin_unlock(&platform_bus_type.klist_drivers.k_lock);
+ spin_unlock(&platform_bus_type.p->klist_drivers.k_lock);
if (code != retval)
platform_driver_unregister(drv);
modalias_show(struct device *dev, struct device_attribute *a, char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
- int len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->name);
+ int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
__ATTR_NULL,
};
-static int platform_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct platform_device *pdev = to_platform_device(dev);
- envp[0] = buffer;
- snprintf(buffer, buffer_size, "MODALIAS=%s", pdev->name);
+ add_uevent_var(env, "MODALIAS=platform:%s", pdev->name);
return 0;
}