screen: start drm implementation

1 files changed, 19 insertions, 0 deletions

diff --git a/src/screen/drm/request.zig b/src/screen/drm/request.zig
new file mode 100644
index 0000000..bf9701c
--- /dev/null
+++ b/src/screen/drm/request.zig
@@ -0,0 +1,19 @@
+const std = @import("std");
+const os = std.os.linux;
+const cerror = @import("../cerror.zig");
+
+fn ioctl(fd: os.fd_t, request: u32, arg: usize) !void {
+    try cerror.from_usize(os.ioctl(fd, request, arg));
+}
+
+pub const Drm = enum(u8) {
+    const Self = @This();
+
+    get_resources = 0xA0,
+    get_connector = 0xA7,
+
+    pub fn request(self: Self, fd: os.fd_t, T: type, arg: *T) !void {
+        const id = os.IOCTL.IOWR('d', @intFromEnum(self), T);
+        try ioctl(fd, id, @intFromPtr(arg));
+    }
+};