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path: root/drivers/staging/wusbcore/dev-sysfs.c
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Diffstat (limited to 'drivers/staging/wusbcore/dev-sysfs.c')
-rw-r--r--drivers/staging/wusbcore/dev-sysfs.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/drivers/staging/wusbcore/dev-sysfs.c b/drivers/staging/wusbcore/dev-sysfs.c
deleted file mode 100644
index 67b0a4c412b2..000000000000
--- a/drivers/staging/wusbcore/dev-sysfs.c
+++ /dev/null
@@ -1,124 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * WUSB devices
- * sysfs bindings
- *
- * Copyright (C) 2007 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- *
- * Get them out of the way...
- */
-
-#include <linux/jiffies.h>
-#include <linux/ctype.h>
-#include <linux/workqueue.h>
-#include "wusbhc.h"
-
-static ssize_t wusb_disconnect_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- struct usb_device *usb_dev;
- struct wusbhc *wusbhc;
- unsigned command;
- u8 port_idx;
-
- if (sscanf(buf, "%u", &command) != 1)
- return -EINVAL;
- if (command == 0)
- return size;
- usb_dev = to_usb_device(dev);
- wusbhc = wusbhc_get_by_usb_dev(usb_dev);
- if (wusbhc == NULL)
- return -ENODEV;
-
- mutex_lock(&wusbhc->mutex);
- port_idx = wusb_port_no_to_idx(usb_dev->portnum);
- __wusbhc_dev_disable(wusbhc, port_idx);
- mutex_unlock(&wusbhc->mutex);
- wusbhc_put(wusbhc);
- return size;
-}
-static DEVICE_ATTR_WO(wusb_disconnect);
-
-static ssize_t wusb_cdid_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- ssize_t result;
- struct wusb_dev *wusb_dev;
-
- wusb_dev = wusb_dev_get_by_usb_dev(to_usb_device(dev));
- if (wusb_dev == NULL)
- return -ENODEV;
- result = sprintf(buf, "%16ph\n", wusb_dev->cdid.data);
- wusb_dev_put(wusb_dev);
- return result;
-}
-static DEVICE_ATTR_RO(wusb_cdid);
-
-static ssize_t wusb_ck_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- int result;
- struct usb_device *usb_dev;
- struct wusbhc *wusbhc;
- struct wusb_ckhdid ck;
-
- result = sscanf(buf,
- "%02hhx %02hhx %02hhx %02hhx "
- "%02hhx %02hhx %02hhx %02hhx "
- "%02hhx %02hhx %02hhx %02hhx "
- "%02hhx %02hhx %02hhx %02hhx\n",
- &ck.data[0] , &ck.data[1],
- &ck.data[2] , &ck.data[3],
- &ck.data[4] , &ck.data[5],
- &ck.data[6] , &ck.data[7],
- &ck.data[8] , &ck.data[9],
- &ck.data[10], &ck.data[11],
- &ck.data[12], &ck.data[13],
- &ck.data[14], &ck.data[15]);
- if (result != 16)
- return -EINVAL;
-
- usb_dev = to_usb_device(dev);
- wusbhc = wusbhc_get_by_usb_dev(usb_dev);
- if (wusbhc == NULL)
- return -ENODEV;
- result = wusb_dev_4way_handshake(wusbhc, usb_dev->wusb_dev, &ck);
- memzero_explicit(&ck, sizeof(ck));
- wusbhc_put(wusbhc);
- return result < 0 ? result : size;
-}
-static DEVICE_ATTR_WO(wusb_ck);
-
-static struct attribute *wusb_dev_attrs[] = {
- &dev_attr_wusb_disconnect.attr,
- &dev_attr_wusb_cdid.attr,
- &dev_attr_wusb_ck.attr,
- NULL,
-};
-
-static const struct attribute_group wusb_dev_attr_group = {
- .name = NULL, /* we want them in the same directory */
- .attrs = wusb_dev_attrs,
-};
-
-int wusb_dev_sysfs_add(struct wusbhc *wusbhc, struct usb_device *usb_dev,
- struct wusb_dev *wusb_dev)
-{
- int result = sysfs_create_group(&usb_dev->dev.kobj,
- &wusb_dev_attr_group);
- struct device *dev = &usb_dev->dev;
- if (result < 0)
- dev_err(dev, "Cannot register WUSB-dev attributes: %d\n",
- result);
- return result;
-}
-
-void wusb_dev_sysfs_rm(struct wusb_dev *wusb_dev)
-{
- struct usb_device *usb_dev = wusb_dev->usb_dev;
- if (usb_dev)
- sysfs_remove_group(&usb_dev->dev.kobj, &wusb_dev_attr_group);
-}