linux-loongson/sound/usb/usx2y/us122l.h
Takashi Iwai f86af06306 ALSA: us122l: Drop mmap_count field
us122l.mmap_count field was used for counting the hwdep mmap opens and
syncing at disconnection.  But such a manual sync isn't needed, as the
refcount check is done in the ALSA core side.  So let's drop it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241113111042.15058-4-tiwai@suse.de
2024-11-13 13:33:47 +01:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef US122L_H
#define US122L_H
struct us122l {
struct usb_device *dev;
int card_index;
int stride;
struct usb_stream_kernel sk;
struct mutex mutex;
struct file *first;
unsigned int second_periods_polled;
struct file *master;
struct file *slave;
struct list_head midi_list;
bool is_us144;
};
#define US122L(c) ((struct us122l *)(c)->private_data)
#define NAME_ALLCAPS "US-122L"
#define USB_ID_US122L 0x800E
#define USB_ID_US144 0x800F
#define USB_ID_US122MKII 0x8021
#define USB_ID_US144MKII 0x8020
#endif