src/screen/drm/request.zig


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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_encoder = 0xa6,
    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));
    }
};