40 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>4 */5/*6 * driver for VIA VT1632 DVI Transmitter7 */8 9#include <linux/slab.h>10#include "via_aux.h"11 12 13static const char *name = "VT1632 DVI Transmitter";14 15 16static void probe(struct via_aux_bus *bus, u8 addr)17{18 struct via_aux_drv drv = {19 .bus = bus,20 .addr = addr,21 .name = name};22 /* check vendor id and device id */23 const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id);24 u8 tmp[ARRAY_SIZE(id)];25 26 if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))27 return;28 29 printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr);30 via_aux_add(&drv);31}32 33void via_aux_vt1632_probe(struct via_aux_bus *bus)34{35 u8 i;36 37 for (i = 0x08; i <= 0x0F; i++)38 probe(bus, i);39}40