original_kernel/drivers/input/vivaldi-fmap.c

40 lines
1000 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Helpers for ChromeOS Vivaldi keyboard function row mapping
*
* Copyright (C) 2022 Google, Inc
*/
#include <linux/export.h>
#include <linux/input/vivaldi-fmap.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
/**
* vivaldi_function_row_physmap_show - Print vivaldi function row physmap attribute
* @data: The vivaldi function row map
* @buf: Buffer to print the function row phsymap to
*/
ssize_t vivaldi_function_row_physmap_show(const struct vivaldi_data *data,
char *buf)
{
ssize_t size = 0;
int i;
const u32 *physmap = data->function_row_physmap;
if (!data->num_function_row_keys)
return 0;
for (i = 0; i < data->num_function_row_keys; i++)
size += scnprintf(buf + size, PAGE_SIZE - size,
"%s%02X", size ? " " : "", physmap[i]);
if (size)
size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
return size;
}
EXPORT_SYMBOL_GPL(vivaldi_function_row_physmap_show);
MODULE_LICENSE("GPL");