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tty: implement read/write support

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This commit is contained in:
max 🍓
2023-06-11 09:23:57 +01:00
parent 557e1dda30
commit abe4af093e
9 changed files with 124 additions and 14 deletions
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29
dev/char.c
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@@ -17,3 +17,32 @@ struct char_device *char_device_from_generic(struct device *dev)
dev->dev_type = DEV_TYPE_CHAR;
return CHAR_DEVICE(dev);
}
static kern_status_t char_device_read(struct device *dev, void *buf, size_t size, size_t *bytes_read, socks_flags_t flags)
{
kern_status_t status = KERN_UNSUPPORTED;
struct char_device *cdev = CHAR_DEVICE(dev);
if (cdev->c_ops && cdev->c_ops->read) {
status = cdev->c_ops->read(dev, buf, size, bytes_read, flags);
}
return status;
}
static kern_status_t char_device_write(struct device *dev, const void *buf, size_t size, size_t *bytes_read, socks_flags_t flags)
{
kern_status_t status = KERN_UNSUPPORTED;
struct char_device *cdev = CHAR_DEVICE(dev);
if (cdev->c_ops && cdev->c_ops->write) {
status = cdev->c_ops->write(dev, buf, size, bytes_read, flags);
}
return status;
}
struct device_type_ops char_type_ops = {
.read = char_device_read,
.write = char_device_write,
};