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dev: auto-generate device name in device_register if name is unspecified

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This commit is contained in:
max 🍓
2023-05-11 21:19:00 +01:00
parent 802e610eed
commit 0238008986
5 changed files with 45 additions and 3 deletions
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20
dev/input.c
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@@ -1,5 +1,10 @@
#include <socks/device.h>
#include <socks/input.h>
#include <socks/bitmap.h>
#include <socks/libc/stdio.h>
static DECLARE_BITMAP(input_device_ids, INPUT_DEVICE_MAX);
static spin_lock_t input_device_ids_lock = SPIN_LOCK_INIT;
struct input_device *input_device_create(void)
{
@@ -16,6 +21,14 @@ struct input_device *input_device_create(void)
return NULL;
}
unsigned long flags;
spin_lock_irqsave(&input_device_ids_lock, &flags);
unsigned int id = bitmap_lowest_clear(input_device_ids, INPUT_DEVICE_MAX);
bitmap_set(input_device_ids, id);
spin_unlock_irqrestore(&input_device_ids_lock, flags);
input_dev->i_id = id;
return INPUT_DEVICE(dev);
}
@@ -49,3 +62,10 @@ kern_status_t input_device_read(struct device *dev, void *buf, size_t size, size
return KERN_OK;
}
kern_status_t input_device_generate_name(struct input_device *dev)
{
struct device *d = input_device_base(dev);
snprintf(d->dev_name, sizeof d->dev_name, "input%u", dev->i_id);
return KERN_OK;
}