webcamd, compat32, evdev

patch-compat32-evdev.patch

diff --git a/kernel/linux_file.c b/kernel/linux_file.c
index a68291a..98cef0a 100644
--- kernel/linux_file.c
+++ kernel/linux_file.c
@@ -194,7 +194,14 @@ linux_read(struct cdev_handle *handle, int fflags, char *ptr, size_t len)
 
 	linux_fix_f_flags(&handle->fixed_file, fflags);
 
-	error = handle->fixed_file.f_op->read(&handle->fixed_file, ptr, len, &off);
+	if (fflags & CUSE_FFLAG_COMPAT32) {
+		in_compat32_call = 1;
+		error = handle->fixed_file.f_op->read(&handle->fixed_file, ptr, len, &off);
+		in_compat32_call = 0;
+		// compat_free_all_user_space()?
+	} else {
+		error = handle->fixed_file.f_op->read(&handle->fixed_file, ptr, len, &off);
+	}
 
 	return (error);
 }
diff --git a/webcamd.c b/webcamd.c
index cf3c43a..8431a85 100644
--- webcamd.c
+++ webcamd.c
@@ -247,7 +247,7 @@ v4b_read(struct cuse_dev *cdev, int fflags,
 	handle = cuse_dev_get_per_file_handle(cdev);
 
 	/* read from device */
-	error = linux_read(handle, fflags & CUSE_FFLAG_NONBLOCK, peer_ptr, len);
+	error = linux_read(handle, fflags & (CUSE_FFLAG_NONBLOCK | CUSE_FFLAG_COMPAT32), peer_ptr, len);
 
 	return (v4b_convert_error(error));
 }