HID: add phys and name ioctls to hidraw
The hiddev interface provides ioctl() calls which can be used
to obtain phys and raw name of the underlying device.
Add the corresponding support also into hidraw.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 7685ae6..975edd8 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -265,6 +265,34 @@
break;
}
default:
+ {
+ struct hid_device *hid = dev->hid;
+ if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ)
+ return -EINVAL;
+
+ if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) {
+ int len;
+ if (!hid->name)
+ return 0;
+ len = strlen(hid->name) + 1;
+ if (len > _IOC_SIZE(cmd))
+ len = _IOC_SIZE(cmd);
+ return copy_to_user(user_arg, hid->name, len) ?
+ -EFAULT : len;
+ }
+
+ if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) {
+ int len;
+ if (!hid->phys)
+ return 0;
+ len = strlen(hid->phys) + 1;
+ if (len > _IOC_SIZE(cmd))
+ len = _IOC_SIZE(cmd);
+ return copy_to_user(user_arg, hid->phys, len) ?
+ -EFAULT : len;
+ }
+ }
+
ret = -ENOTTY;
}
unlock_kernel();
