cregit-Linux how code gets into the kernel

Release 4.8 sound/firewire/oxfw/oxfw-proc.c

/*
 * oxfw_proc.c - a part of driver for OXFW970/971 based devices
 *
 * Copyright (c) 2014 Takashi Sakamoto
 *
 * Licensed under the terms of the GNU General Public License, version 2.
 */

#include "./oxfw.h"


static void proc_read_formation(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_oxfw *oxfw = entry->private_data; struct snd_oxfw_stream_formation formation, curr; u8 *format; char flag; int i, err; /* Show input. */ err = snd_oxfw_stream_get_current_formation(oxfw, AVC_GENERAL_PLUG_DIR_IN, &curr); if (err < 0) return; snd_iprintf(buffer, "Input Stream to device:\n"); snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { format = oxfw->rx_stream_formats[i]; if (format == NULL) continue; err = snd_oxfw_stream_parse_format(format, &formation); if (err < 0) continue; if (memcmp(&formation, &curr, sizeof(curr)) == 0) flag = '*'; else flag = ' '; snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, formation.rate, formation.pcm, formation.midi); } if (!oxfw->has_output) return; /* Show output. */ err = snd_oxfw_stream_get_current_formation(oxfw, AVC_GENERAL_PLUG_DIR_OUT, &curr); if (err < 0) return; snd_iprintf(buffer, "Output Stream from device:\n"); snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { format = oxfw->tx_stream_formats[i]; if (format == NULL) continue; err = snd_oxfw_stream_parse_format(format, &formation); if (err < 0) continue; if (memcmp(&formation, &curr, sizeof(curr)) == 0) flag = '*'; else flag = ' '; snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, formation.rate, formation.pcm, formation.midi); } }

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takashi sakamototakashi sakamoto311100.00%2100.00%
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static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root, const char *name, void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b)) { struct snd_info_entry *entry; entry = snd_info_create_card_entry(oxfw->card, name, root); if (entry == NULL) return; snd_info_set_text_ops(entry, oxfw, op); if (snd_info_register(entry) < 0) snd_info_free_entry(entry); }

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takashi sakamototakashi sakamoto86100.00%1100.00%
Total86100.00%1100.00%


void snd_oxfw_proc_init(struct snd_oxfw *oxfw) { struct snd_info_entry *root; /* * All nodes are automatically removed at snd_card_disconnect(), * by following to link list. */ root = snd_info_create_card_entry(oxfw->card, "firewire", oxfw->card->proc_root); if (root == NULL) return; root->mode = S_IFDIR | S_IRUGO | S_IXUGO; if (snd_info_register(root) < 0) { snd_info_free_entry(root); return; } add_node(oxfw, root, "formation", proc_read_formation); }

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takashi sakamototakashi sakamoto78100.00%1100.00%
Total78100.00%1100.00%


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takashi sakamototakashi sakamoto479100.00%2100.00%
Total479100.00%2100.00%
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