Release 4.15 drivers/usb/gadget/function/g_zero.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * This header declares the utility functions used by "Gadget Zero", plus
 * interfaces to its two single-configuration function drivers.
 */

#ifndef __G_ZERO_H

#define __G_ZERO_H


#define GZERO_BULK_BUFLEN	4096

#define GZERO_QLEN		32

#define GZERO_ISOC_INTERVAL	4

#define GZERO_ISOC_MAXPACKET	1024

#define GZERO_SS_BULK_QLEN	1

#define GZERO_SS_ISO_QLEN	8


struct usb_zero_options {
	
unsigned pattern;
	
unsigned isoc_interval;
	
unsigned isoc_maxpacket;
	
unsigned isoc_mult;
	
unsigned isoc_maxburst;
	
unsigned bulk_buflen;
	
unsigned qlen;
	
unsigned ss_bulk_qlen;
	
unsigned ss_iso_qlen;
};


struct f_ss_opts {
	
struct usb_function_instance func_inst;
	
unsigned pattern;
	
unsigned isoc_interval;
	
unsigned isoc_maxpacket;
	
unsigned isoc_mult;
	
unsigned isoc_maxburst;
	
unsigned bulk_buflen;
	
unsigned bulk_qlen;
	
unsigned iso_qlen;

	/*
         * Read/write access to configfs attributes is handled by configfs.
         *
         * This is to protect the data from concurrent access by read/write
         * and create symlink/remove symlink.
         */
	
struct mutex			lock;
	
int				refcnt;
};


struct f_lb_opts {
	
struct usb_function_instance func_inst;
	
unsigned bulk_buflen;
	
unsigned qlen;

	/*
         * Read/write access to configfs attributes is handled by configfs.
         *
         * This is to protect the data from concurrent access by read/write
         * and create symlink/remove symlink.
         */
	
struct mutex			lock;
	
int				refcnt;
};

void lb_modexit(void);
int lb_modinit(void);

/* common utilities */
void disable_endpoints(struct usb_composite_dev *cdev,
		struct usb_ep *in, struct usb_ep *out,
		struct usb_ep *iso_in, struct usb_ep *iso_out);

#endif /* __G_ZERO_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Sebastian Andrzej Siewior
76
43.93%
1
12.50%
David Brownell
34
19.65%
2
25.00%
Andrzej Pietrasiewicz
32
18.50%
2
25.00%
Peter Chen
20
11.56%
1
12.50%
Paul Zimmerman
10
5.78%
1
12.50%
Greg Kroah-Hartman
1
0.58%
1
12.50%
Total
173
100.00%
8
100.00%
Directory: drivers/usb/gadget/function

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