Lines Matching +full:double +full:- +full:buffering

1 // SPDX-License-Identifier: GPL-2.0+
3  * mass_storage.c -- Mass Storage USB Gadget
5  * Copyright (C) 2003-2008 Alan Stern
14  * appearing to the host as a disk drive or as a CD-ROM drive.  In
17  * double-buffering for increased throughput.  Last but not least, it
31 /*-------------------------------------------------------------------------*/
40  * Instead:  allocate your own, using normal USB-IF procedures.
43 #define FSG_PRODUCT_ID	0xa4a5	/* Linux-USB File-backed Storage Gadget */
47 /*-------------------------------------------------------------------------*/
73 	.language       = 0x0409,       /* en-us */
98  * 2 is usually enough for good buffering pipeline
110 	if (gadget_is_otg(c->cdev->gadget)) {  in msg_do_config()
111 		c->descriptors = otg_desc;  in msg_do_config()
112 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;  in msg_do_config()
131 	.label			= "Linux File-Backed Storage",
152 	opts->no_configfs = true;  in msg_bind()
153 	status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers);  in msg_bind()
157 	status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);  in msg_bind()
161 	fsg_common_set_sysfs(opts->common, true);  in msg_bind()
162 	status = fsg_common_create_luns(opts->common, &config);  in msg_bind()
166 	fsg_common_set_inquiry_string(opts->common, config.vendor_name,  in msg_bind()
174 	if (gadget_is_otg(cdev->gadget) && !otg_desc[0]) {  in msg_bind()
177 		usb_desc = usb_otg_descriptor_alloc(cdev->gadget);  in msg_bind()
179 			status = -ENOMEM;  in msg_bind()
182 		usb_otg_descriptor_init(cdev->gadget, usb_desc);  in msg_bind()
192 	dev_info(&cdev->gadget->dev,  in msg_bind()
200 	fsg_common_remove_luns(opts->common);  in msg_bind()
202 	fsg_common_free_buffers(opts->common);  in msg_bind()