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/linux/Documentation/driver-api/usb/
H A Dcallbacks.rst26 2. Odd backdoor through usbfs:
30 the "usbfs" filesystem. This lets devices provide ways to
H A Dpower-management.rst94 its usbfs file open, whether or not any I/O is going on.
96 If a USB device has no driver, its usbfs file isn't open, and it isn't
/linux/drivers/usb/core/
H A Ddevio.c9 * This file implements the usbfs/x/y files, where
114 MODULE_PARM_DESC(usbfs_snoop, "true to log all usbfs traffic");
137 "maximum MB allowed for usbfs buffers (0 = no limit)");
774 .name = "usbfs",
850 dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim " in checkintf()
1258 dev_printk(KERN_DEBUG, &dev->dev, "usbfs: USBDEVFS_CONTROL " in do_proc_control()
1519 "usbfs: interface %d claimed by %s while '%s' resets device\n", in proc_resetdevice()
1559 * an interface is claimed by usbfs it could easily deadlock. in proc_setconfig()
1567 "usbfs: interface %d claimed by %s " in proc_setconfig()
1975 "usbfs: usb_submit_urb returned %d\n", ret); in proc_do_submiturb()
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H A Ddriver.c1715 * @udev's device file in usbfs is closed or after a configuration change.
1744 * be when @udev's device file in usbfs is opened or when a remote-wakeup
H A Dhub.c2232 * Device numbers are used as filenames in usbfs. On USB-1.1 and
2374 * notifier chain (used by usbfs and possibly others). in usb_disconnect()
2693 * notifier chain (used by usbfs and possibly others). in usb_new_device()
6454 * might be unbound, as well as users from usbfs in user space.
H A Dhcd.c88 DEFINE_MUTEX(usb_bus_idr_lock); /* exported only for usbfs */
1529 /* NOTE requirements on root-hub callers (usbfs and the hub in usb_hcd_submit_urb()
/linux/include/linux/usb/
H A Dch9.h10 * - the "usbfs" user space API; and
/linux/Documentation/usb/
H A Dehci.rst75 from a driver on one interface (or through usbfs) won't interfere with
/linux/drivers/usb/misc/
H A Dusbtest.c87 /* this is accessed only through usbfs ioctl calls.
660 * through usbfs. we can't change that, so we won't test enumeration (which
2637 /* We only have this one interface to user space, through usbfs.
2638 * User mode code can scan usbfs to find N different devices (maybe on
2650 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
/linux/drivers/usb/host/
H A Dehci-sched.c954 /* ... update usbfs periodic stats */ in intr_submit()
1052 /* usbfs wants to report the average usecs per frame tied up in iso_stream_init()
2156 /* usbfs ignores TT bandwidth */ in sitd_link_urb()
H A Doxu210hp-hcd.c1334 /* ... update hc-wide periodic stats (for usbfs) */ in ehci_urb_done()
2380 /* update per-qh bandwidth for usbfs */ in qh_link_periodic()
2413 /* update per-qh bandwidth for usbfs */ in qh_unlink_periodic()
2623 /* ... update usbfs periodic stats */ in intr_submit()
/linux/drivers/usb/mon/
H A Dmon_text.c44 * The usbfs limits this to 128, but we're not quite as generous.
H A Dmon_bin.c169 #define ISODESC_MAX 128 /* Same number as usbfs allows, 2048 bytes. */
/linux/drivers/usb/fotg210/
H A Dfotg210-hcd.c2199 /* ... update hc-wide periodic stats (for usbfs) */ in fotg210_urb_done()
3527 /* update per-qh bandwidth for usbfs */ in qh_link_periodic()
3568 /* update per-qh bandwidth for usbfs */ in qh_unlink_periodic()
3853 /* ... update usbfs periodic stats */ in intr_submit()
3943 /* usbfs wants to report the average usecs per frame tied up in iso_stream_init()
/linux/drivers/usb/gadget/legacy/
H A Dinode.c67 * Unlike "usbfs" the only ioctl()s are for things that are rare, and maybe
/linux/Documentation/admin-guide/
H A Dkernel-parameters.txt8097 [USB] Set to log all usbfs traffic (default 0 = off).
8112 usbfs (default = 16, 0 = max = 2047).