sound/usb/quirks.h

Source file repositories/reference/linux-study-clean/sound/usb/quirks.h

File Facts

System
Linux kernel
Corpus path
sound/usb/quirks.h
Extension
.h
Size
1977 bytes
Lines
63
Domain
Driver Families
Bucket
sound/usb
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __USBAUDIO_QUIRKS_H
#define __USBAUDIO_QUIRKS_H

struct audioformat;
struct snd_usb_endpoint;
struct snd_usb_substream;

int snd_usb_create_quirk(struct snd_usb_audio *chip,
			 struct usb_interface *iface,
			 struct usb_driver *driver,
			 const struct snd_usb_audio_quirk *quirk);

int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
				  int iface,
				  int altno);

int snd_usb_apply_boot_quirk(struct usb_device *dev,
			     struct usb_interface *intf,
			     const struct snd_usb_audio_quirk *quirk,
			     unsigned int usb_id);

int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
				  struct usb_interface *intf,
				  const struct snd_usb_audio_quirk *quirk,
				  unsigned int usb_id);

void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
			      const struct audioformat *fmt);

int snd_usb_is_big_endian_format(struct snd_usb_audio *chip,
				 const struct audioformat *fp);

void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep);

void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
			   __u8 request, __u8 requesttype, __u16 value,
			   __u16 index, void *data, __u16 size);

int snd_usb_select_mode_quirk(struct snd_usb_audio *chip,
			      const struct audioformat *fmt);

u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
					struct audioformat *fp,
					unsigned int sample_bytes);

void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
					  struct audioformat *fp,
					  int stream);

void snd_usb_apply_flag_dbg(const char *reason,
			    struct snd_usb_audio *chip,
			    unsigned long flag);

void snd_usb_init_quirk_flags_table(struct snd_usb_audio *chip);
void snd_usb_init_quirk_flags_parse_string(struct snd_usb_audio *chip,
					   const char *str);

const char *snd_usb_quirk_flag_find_name(unsigned long flag);
u32 snd_usb_quirk_flags_from_name(const char *name);

#endif /* __USBAUDIO_QUIRKS_H */

Annotation

Implementation Notes