f26c566455
This adds "function_name" configfs entry to change string value of the iInterface field. This field will be shown in Windows' audio settings panel, so being able to change it is useful. It will default to "Source/Sink" just as before. Signed-off-by: Yunhao Tian <t123yh.xyz@gmail.com> Link: https://lore.kernel.org/r/20220122112446.1415547-2-t123yh.xyz@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Bug: 235196743 (cherry picked from commit 993a44fa85c1ea5989fb5c46236ca2e3cfd71b78) Change-Id: I6061d841eee5b611f18280c901849d0c4b2a17d4 Signed-off-by: Luiz Matheus <luizmmat@motorola.com>
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* u_uac2.h
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*
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* Utility definitions for UAC2 function
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*
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* Copyright (c) 2014 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
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*/
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#ifndef U_UAC2_H
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#define U_UAC2_H
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#include <linux/usb/composite.h>
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#include "uac_common.h"
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#define UAC2_DEF_PCHMASK 0x3
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#define UAC2_DEF_PSRATE 48000
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#define UAC2_DEF_PSSIZE 2
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#define UAC2_DEF_CCHMASK 0x3
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#define UAC2_DEF_CSRATE 64000
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#define UAC2_DEF_CSSIZE 2
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#define UAC2_DEF_CSYNC USB_ENDPOINT_SYNC_ASYNC
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#define UAC2_DEF_MUTE_PRESENT 1
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#define UAC2_DEF_VOLUME_PRESENT 1
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#define UAC2_DEF_MIN_DB (-100*256) /* -100 dB */
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#define UAC2_DEF_MAX_DB 0 /* 0 dB */
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#define UAC2_DEF_RES_DB (1*256) /* 1 dB */
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#define UAC2_DEF_REQ_NUM 2
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#define UAC2_DEF_INT_REQ_NUM 10
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struct f_uac2_opts {
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struct usb_function_instance func_inst;
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int p_chmask;
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int p_srates[UAC_MAX_RATES];
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int p_ssize;
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int c_chmask;
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int c_srates[UAC_MAX_RATES];
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int c_ssize;
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int c_sync;
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bool p_mute_present;
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bool p_volume_present;
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s16 p_volume_min;
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s16 p_volume_max;
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s16 p_volume_res;
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bool c_mute_present;
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bool c_volume_present;
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s16 c_volume_min;
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s16 c_volume_max;
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s16 c_volume_res;
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int req_number;
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int fb_max;
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bool bound;
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char function_name[32];
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struct mutex lock;
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int refcnt;
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};
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#endif
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