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Message-Id: <4a7fb972e6b0e40ad87facea0ee1dc904d579699.1308547654.git.mfm@muteddisk.com>
Date: Sun, 19 Jun 2011 22:44:46 -0700
From: matt mooney <mfm@...eddisk.com>
To: Greg KH <greg@...ah.com>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 16/22] staging: usbip: userspace: rename stub driver files
Rename stub_driver.? to usbip_host_driver.?
Signed-off-by: matt mooney <mfm@...eddisk.com>
---
drivers/staging/usbip/userspace/Makefile.am | 2 +-
drivers/staging/usbip/userspace/libsrc/Makefile.am | 2 +-
.../staging/usbip/userspace/libsrc/stub_driver.c | 395 --------------------
.../staging/usbip/userspace/libsrc/stub_driver.h | 37 --
.../usbip/userspace/libsrc/usbip_host_driver.c | 395 ++++++++++++++++++++
.../usbip/userspace/libsrc/usbip_host_driver.h | 37 ++
6 files changed, 434 insertions(+), 434 deletions(-)
delete mode 100644 drivers/staging/usbip/userspace/libsrc/stub_driver.c
delete mode 100644 drivers/staging/usbip/userspace/libsrc/stub_driver.h
create mode 100644 drivers/staging/usbip/userspace/libsrc/usbip_host_driver.c
create mode 100644 drivers/staging/usbip/userspace/libsrc/usbip_host_driver.h
diff --git a/drivers/staging/usbip/userspace/Makefile.am b/drivers/staging/usbip/userspace/Makefile.am
index d557fe9..fbdeef3 100644
--- a/drivers/staging/usbip/userspace/Makefile.am
+++ b/drivers/staging/usbip/userspace/Makefile.am
@@ -1,6 +1,6 @@
SUBDIRS := libsrc src
includedir := @includedir@...bip
include_HEADERS := $(addprefix libsrc/, \
- usbip_common.h vhci_driver.h stub_driver.h)
+ usbip_common.h vhci_driver.h usbip_host_driver.h)
dist_man_MANS := $(addprefix doc/, usbip.8 usbipd.8 usbip_bind_driver.8)
diff --git a/drivers/staging/usbip/userspace/libsrc/Makefile.am b/drivers/staging/usbip/userspace/libsrc/Makefile.am
index 6696aa7..9b663a4 100644
--- a/drivers/staging/usbip/userspace/libsrc/Makefile.am
+++ b/drivers/staging/usbip/userspace/libsrc/Makefile.am
@@ -3,5 +3,5 @@ libusbip_la_CFLAGS := @EXTRA_CFLAGS@
libusbip_la_LDFLAGS := -version-info @LIBUSBIP_VERSION@
lib_LTLIBRARIES := libusbip.la
-libusbip_la_SOURCES := names.c names.h stub_driver.c stub_driver.h \
+libusbip_la_SOURCES := names.c names.h usbip_host_driver.c usbip_host_driver.h \
usbip_common.c usbip_common.h vhci_driver.c vhci_driver.h
diff --git a/drivers/staging/usbip/userspace/libsrc/stub_driver.c b/drivers/staging/usbip/userspace/libsrc/stub_driver.c
deleted file mode 100644
index 604aed1..0000000
--- a/drivers/staging/usbip/userspace/libsrc/stub_driver.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * Copyright (C) 2005-2007 Takahiro Hirofuchi
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <errno.h>
-#include <unistd.h>
-
-#include "usbip_common.h"
-#include "stub_driver.h"
-
-#undef PROGNAME
-#define PROGNAME "libusbip"
-
-struct usbip_stub_driver *stub_driver;
-
-static struct sysfs_driver *open_sysfs_stub_driver(void)
-{
- int ret;
-
- char sysfs_mntpath[SYSFS_PATH_MAX];
- char stub_driver_path[SYSFS_PATH_MAX];
- struct sysfs_driver *stub_driver;
-
-
- ret = sysfs_get_mnt_path(sysfs_mntpath, SYSFS_PATH_MAX);
- if (ret < 0) {
- dbg("sysfs_get_mnt_path failed");
- return NULL;
- }
-
- snprintf(stub_driver_path, SYSFS_PATH_MAX, "%s/%s/usb/%s/%s",
- sysfs_mntpath, SYSFS_BUS_NAME, SYSFS_DRIVERS_NAME,
- USBIP_HOST_DRV_NAME);
-
- stub_driver = sysfs_open_driver_path(stub_driver_path);
- if (!stub_driver) {
- dbg("sysfs_open_driver_path failed");
- return NULL;
- }
-
- return stub_driver;
-}
-
-
-#define SYSFS_OPEN_RETRIES 100
-
-/* only the first interface value is true! */
-static int32_t read_attr_usbip_status(struct usbip_usb_device *udev)
-{
- char attrpath[SYSFS_PATH_MAX];
- struct sysfs_attribute *attr;
- int value = 0;
- int ret;
- struct stat s;
- int retries = SYSFS_OPEN_RETRIES;
-
- /* This access is racy!
- *
- * Just after detach, our driver removes the sysfs
- * files and recreates them.
- *
- * We may try and fail to open the usbip_status of
- * an exported device in the (short) window where
- * it has been removed and not yet recreated.
- *
- * This is a bug in the interface. Nothing we can do
- * except work around it here by polling for the sysfs
- * usbip_status to reappear.
- */
-
- snprintf(attrpath, SYSFS_PATH_MAX, "%s/%s:%d.%d/usbip_status",
- udev->path, udev->busid,
- udev->bConfigurationValue,
- 0);
-
- while (retries > 0) {
- if (stat(attrpath, &s) == 0)
- break;
-
- if (errno != ENOENT) {
- dbg("stat failed: %s", attrpath);
- return -1;
- }
-
- usleep(10000); /* 10ms */
- retries--;
- }
-
- if (retries == 0)
- dbg("usbip_status not ready after %d retries",
- SYSFS_OPEN_RETRIES);
- else if (retries < SYSFS_OPEN_RETRIES)
- dbg("warning: usbip_status ready after %d retries",
- SYSFS_OPEN_RETRIES - retries);
-
- attr = sysfs_open_attribute(attrpath);
- if (!attr) {
- dbg("sysfs_open_attribute failed: %s", attrpath);
- return -1;
- }
-
- ret = sysfs_read_attribute(attr);
- if (ret) {
- dbg("sysfs_read_attribute failed: %s", attrpath);
- sysfs_close_attribute(attr);
- return -1;
- }
-
- value = atoi(attr->value);
-
- sysfs_close_attribute(attr);
-
- return value;
-}
-
-
-static void usbip_exported_device_delete(void *dev)
-{
- struct usbip_exported_device *edev =
- (struct usbip_exported_device *) dev;
-
- sysfs_close_device(edev->sudev);
- free(dev);
-}
-
-
-static struct usbip_exported_device *usbip_exported_device_new(char *sdevpath)
-{
- struct usbip_exported_device *edev = NULL;
-
- edev = (struct usbip_exported_device *) calloc(1, sizeof(*edev));
- if (!edev) {
- dbg("calloc failed");
- return NULL;
- }
-
- edev->sudev = sysfs_open_device_path(sdevpath);
- if (!edev->sudev) {
- dbg("sysfs_open_device_path failed: %s", sdevpath);
- goto err;
- }
-
- read_usb_device(edev->sudev, &edev->udev);
-
- edev->status = read_attr_usbip_status(&edev->udev);
- if (edev->status < 0)
- goto err;
-
- /* reallocate buffer to include usb interface data */
- size_t size = sizeof(*edev) + edev->udev.bNumInterfaces *
- sizeof(struct usbip_usb_interface);
- edev = (struct usbip_exported_device *) realloc(edev, size);
- if (!edev) {
- dbg("realloc failed");
- goto err;
- }
-
- for (int i=0; i < edev->udev.bNumInterfaces; i++)
- read_usb_interface(&edev->udev, i, &edev->uinf[i]);
-
- return edev;
-
-err:
- if (edev && edev->sudev)
- sysfs_close_device(edev->sudev);
- if (edev)
- free(edev);
- return NULL;
-}
-
-
-static int check_new(struct dlist *dlist, struct sysfs_device *target)
-{
- struct sysfs_device *dev;
-
- dlist_for_each_data(dlist, dev, struct sysfs_device) {
- if (!strncmp(dev->bus_id, target->bus_id, SYSFS_BUS_ID_SIZE))
- /* found. not new */
- return 0;
- }
-
- return 1;
-}
-
-static void delete_nothing(void *dev __attribute__((unused)))
-{
- /* do not delete anything. but, its container will be deleted. */
-}
-
-static int refresh_exported_devices(void)
-{
- struct sysfs_device *suinf; /* sysfs_device of usb_interface */
- struct dlist *suinf_list;
-
- struct sysfs_device *sudev; /* sysfs_device of usb_device */
- struct dlist *sudev_list;
-
-
- sudev_list = dlist_new_with_delete(sizeof(struct sysfs_device), delete_nothing);
-
- suinf_list = sysfs_get_driver_devices(stub_driver->sysfs_driver);
- if (!suinf_list) {
- dbg("bind " USBIP_HOST_DRV_NAME ".ko to a usb device to be "
- "exportable!\n");
- goto bye;
- }
-
- /* collect unique USB devices (not interfaces) */
- dlist_for_each_data(suinf_list, suinf, struct sysfs_device) {
-
- /* get usb device of this usb interface */
- sudev = sysfs_get_device_parent(suinf);
- if (!sudev) {
- dbg("sysfs_get_device_parent failed: %s", suinf->name);
- continue;
- }
-
- if (check_new(sudev_list, sudev)) {
- dlist_unshift(sudev_list, sudev);
- }
- }
-
- dlist_for_each_data(sudev_list, sudev, struct sysfs_device) {
- struct usbip_exported_device *edev;
-
- edev = usbip_exported_device_new(sudev->path);
- if (!edev) {
- dbg("usbip_exported_device_new failed");
- continue;
- }
-
- dlist_unshift(stub_driver->edev_list, (void *) edev);
- stub_driver->ndevs++;
- }
-
-
- dlist_destroy(sudev_list);
-
-bye:
-
- return 0;
-}
-
-int usbip_stub_refresh_device_list(void)
-{
- int ret;
-
- if (stub_driver->edev_list)
- dlist_destroy(stub_driver->edev_list);
-
- stub_driver->ndevs = 0;
-
- stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
- usbip_exported_device_delete);
- if (!stub_driver->edev_list) {
- dbg("dlist_new_with_delete failed");
- return -1;
- }
-
- ret = refresh_exported_devices();
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-int usbip_stub_driver_open(void)
-{
- int ret;
-
-
- stub_driver = (struct usbip_stub_driver *) calloc(1, sizeof(*stub_driver));
- if (!stub_driver) {
- dbg("calloc failed");
- return -1;
- }
-
- stub_driver->ndevs = 0;
-
- stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
- usbip_exported_device_delete);
- if (!stub_driver->edev_list) {
- dbg("dlist_new_with_delete failed");
- goto err;
- }
-
- stub_driver->sysfs_driver = open_sysfs_stub_driver();
- if (!stub_driver->sysfs_driver)
- goto err;
-
- ret = refresh_exported_devices();
- if (ret < 0)
- goto err;
-
- return 0;
-
-
-err:
- if (stub_driver->sysfs_driver)
- sysfs_close_driver(stub_driver->sysfs_driver);
- if (stub_driver->edev_list)
- dlist_destroy(stub_driver->edev_list);
- free(stub_driver);
-
- stub_driver = NULL;
- return -1;
-}
-
-
-void usbip_stub_driver_close(void)
-{
- if (!stub_driver)
- return;
-
- if (stub_driver->edev_list)
- dlist_destroy(stub_driver->edev_list);
- if (stub_driver->sysfs_driver)
- sysfs_close_driver(stub_driver->sysfs_driver);
- free(stub_driver);
-
- stub_driver = NULL;
-}
-
-int usbip_stub_export_device(struct usbip_exported_device *edev, int sockfd)
-{
- char attrpath[SYSFS_PATH_MAX];
- struct sysfs_attribute *attr;
- char sockfd_buff[30];
- int ret;
-
-
- if (edev->status != SDEV_ST_AVAILABLE) {
- dbg("device not available: %s", edev->udev.busid);
- switch( edev->status ) {
- case SDEV_ST_ERROR:
- dbg("status SDEV_ST_ERROR");
- break;
- case SDEV_ST_USED:
- dbg("status SDEV_ST_USED");
- break;
- default:
- dbg("status unknown: 0x%x", edev->status);
- }
- return -1;
- }
-
- /* only the first interface is true */
- snprintf(attrpath, sizeof(attrpath), "%s/%s:%d.%d/%s",
- edev->udev.path,
- edev->udev.busid,
- edev->udev.bConfigurationValue, 0,
- "usbip_sockfd");
-
- attr = sysfs_open_attribute(attrpath);
- if (!attr) {
- dbg("sysfs_open_attribute failed: %s", attrpath);
- return -1;
- }
-
- snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd);
-
- dbg("write: %s", sockfd_buff);
- ret = sysfs_write_attribute(attr, sockfd_buff, strlen(sockfd_buff));
- if (ret < 0) {
- dbg("sysfs_write_attribute failed: sockfd %s to %s",
- sockfd_buff, attrpath);
- goto err_write_sockfd;
- }
-
- dbg("connect: %s", edev->udev.busid);
-
-err_write_sockfd:
- sysfs_close_attribute(attr);
-
- return ret;
-}
-
-struct usbip_exported_device *usbip_stub_get_device(int num)
-{
- struct usbip_exported_device *edev;
- struct dlist *dlist = stub_driver->edev_list;
- int count = 0;
-
- dlist_for_each_data(dlist, edev, struct usbip_exported_device) {
- if (num == count)
- return edev;
- else
- count++ ;
- }
-
- return NULL;
-}
diff --git a/drivers/staging/usbip/userspace/libsrc/stub_driver.h b/drivers/staging/usbip/userspace/libsrc/stub_driver.h
deleted file mode 100644
index 9eaf92c..0000000
--- a/drivers/staging/usbip/userspace/libsrc/stub_driver.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2005-2007 Takahiro Hirofuchi
- */
-
-#ifndef __USBIP_STUB_DRIVER_H
-#define __USBIP_STUB_DRIVER_H
-
-#include <stdint.h>
-#include "usbip_common.h"
-
-struct usbip_stub_driver {
- int ndevs;
- struct sysfs_driver *sysfs_driver;
-
- struct dlist *edev_list; /* list of exported device */
-};
-
-struct usbip_exported_device {
- struct sysfs_device *sudev;
-
- int32_t status;
- struct usbip_usb_device udev;
- struct usbip_usb_interface uinf[];
-};
-
-
-extern struct usbip_stub_driver *stub_driver;
-
-int usbip_stub_driver_open(void);
-void usbip_stub_driver_close(void);
-
-int usbip_stub_refresh_device_list(void);
-int usbip_stub_export_device(struct usbip_exported_device *edev, int sockfd);
-
-struct usbip_exported_device *usbip_stub_get_device(int num);
-
-#endif /* __USBIP_STUB_DRIVER_H */
diff --git a/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.c b/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.c
new file mode 100644
index 0000000..604aed1
--- /dev/null
+++ b/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.c
@@ -0,0 +1,395 @@
+/*
+ * Copyright (C) 2005-2007 Takahiro Hirofuchi
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "usbip_common.h"
+#include "stub_driver.h"
+
+#undef PROGNAME
+#define PROGNAME "libusbip"
+
+struct usbip_stub_driver *stub_driver;
+
+static struct sysfs_driver *open_sysfs_stub_driver(void)
+{
+ int ret;
+
+ char sysfs_mntpath[SYSFS_PATH_MAX];
+ char stub_driver_path[SYSFS_PATH_MAX];
+ struct sysfs_driver *stub_driver;
+
+
+ ret = sysfs_get_mnt_path(sysfs_mntpath, SYSFS_PATH_MAX);
+ if (ret < 0) {
+ dbg("sysfs_get_mnt_path failed");
+ return NULL;
+ }
+
+ snprintf(stub_driver_path, SYSFS_PATH_MAX, "%s/%s/usb/%s/%s",
+ sysfs_mntpath, SYSFS_BUS_NAME, SYSFS_DRIVERS_NAME,
+ USBIP_HOST_DRV_NAME);
+
+ stub_driver = sysfs_open_driver_path(stub_driver_path);
+ if (!stub_driver) {
+ dbg("sysfs_open_driver_path failed");
+ return NULL;
+ }
+
+ return stub_driver;
+}
+
+
+#define SYSFS_OPEN_RETRIES 100
+
+/* only the first interface value is true! */
+static int32_t read_attr_usbip_status(struct usbip_usb_device *udev)
+{
+ char attrpath[SYSFS_PATH_MAX];
+ struct sysfs_attribute *attr;
+ int value = 0;
+ int ret;
+ struct stat s;
+ int retries = SYSFS_OPEN_RETRIES;
+
+ /* This access is racy!
+ *
+ * Just after detach, our driver removes the sysfs
+ * files and recreates them.
+ *
+ * We may try and fail to open the usbip_status of
+ * an exported device in the (short) window where
+ * it has been removed and not yet recreated.
+ *
+ * This is a bug in the interface. Nothing we can do
+ * except work around it here by polling for the sysfs
+ * usbip_status to reappear.
+ */
+
+ snprintf(attrpath, SYSFS_PATH_MAX, "%s/%s:%d.%d/usbip_status",
+ udev->path, udev->busid,
+ udev->bConfigurationValue,
+ 0);
+
+ while (retries > 0) {
+ if (stat(attrpath, &s) == 0)
+ break;
+
+ if (errno != ENOENT) {
+ dbg("stat failed: %s", attrpath);
+ return -1;
+ }
+
+ usleep(10000); /* 10ms */
+ retries--;
+ }
+
+ if (retries == 0)
+ dbg("usbip_status not ready after %d retries",
+ SYSFS_OPEN_RETRIES);
+ else if (retries < SYSFS_OPEN_RETRIES)
+ dbg("warning: usbip_status ready after %d retries",
+ SYSFS_OPEN_RETRIES - retries);
+
+ attr = sysfs_open_attribute(attrpath);
+ if (!attr) {
+ dbg("sysfs_open_attribute failed: %s", attrpath);
+ return -1;
+ }
+
+ ret = sysfs_read_attribute(attr);
+ if (ret) {
+ dbg("sysfs_read_attribute failed: %s", attrpath);
+ sysfs_close_attribute(attr);
+ return -1;
+ }
+
+ value = atoi(attr->value);
+
+ sysfs_close_attribute(attr);
+
+ return value;
+}
+
+
+static void usbip_exported_device_delete(void *dev)
+{
+ struct usbip_exported_device *edev =
+ (struct usbip_exported_device *) dev;
+
+ sysfs_close_device(edev->sudev);
+ free(dev);
+}
+
+
+static struct usbip_exported_device *usbip_exported_device_new(char *sdevpath)
+{
+ struct usbip_exported_device *edev = NULL;
+
+ edev = (struct usbip_exported_device *) calloc(1, sizeof(*edev));
+ if (!edev) {
+ dbg("calloc failed");
+ return NULL;
+ }
+
+ edev->sudev = sysfs_open_device_path(sdevpath);
+ if (!edev->sudev) {
+ dbg("sysfs_open_device_path failed: %s", sdevpath);
+ goto err;
+ }
+
+ read_usb_device(edev->sudev, &edev->udev);
+
+ edev->status = read_attr_usbip_status(&edev->udev);
+ if (edev->status < 0)
+ goto err;
+
+ /* reallocate buffer to include usb interface data */
+ size_t size = sizeof(*edev) + edev->udev.bNumInterfaces *
+ sizeof(struct usbip_usb_interface);
+ edev = (struct usbip_exported_device *) realloc(edev, size);
+ if (!edev) {
+ dbg("realloc failed");
+ goto err;
+ }
+
+ for (int i=0; i < edev->udev.bNumInterfaces; i++)
+ read_usb_interface(&edev->udev, i, &edev->uinf[i]);
+
+ return edev;
+
+err:
+ if (edev && edev->sudev)
+ sysfs_close_device(edev->sudev);
+ if (edev)
+ free(edev);
+ return NULL;
+}
+
+
+static int check_new(struct dlist *dlist, struct sysfs_device *target)
+{
+ struct sysfs_device *dev;
+
+ dlist_for_each_data(dlist, dev, struct sysfs_device) {
+ if (!strncmp(dev->bus_id, target->bus_id, SYSFS_BUS_ID_SIZE))
+ /* found. not new */
+ return 0;
+ }
+
+ return 1;
+}
+
+static void delete_nothing(void *dev __attribute__((unused)))
+{
+ /* do not delete anything. but, its container will be deleted. */
+}
+
+static int refresh_exported_devices(void)
+{
+ struct sysfs_device *suinf; /* sysfs_device of usb_interface */
+ struct dlist *suinf_list;
+
+ struct sysfs_device *sudev; /* sysfs_device of usb_device */
+ struct dlist *sudev_list;
+
+
+ sudev_list = dlist_new_with_delete(sizeof(struct sysfs_device), delete_nothing);
+
+ suinf_list = sysfs_get_driver_devices(stub_driver->sysfs_driver);
+ if (!suinf_list) {
+ dbg("bind " USBIP_HOST_DRV_NAME ".ko to a usb device to be "
+ "exportable!\n");
+ goto bye;
+ }
+
+ /* collect unique USB devices (not interfaces) */
+ dlist_for_each_data(suinf_list, suinf, struct sysfs_device) {
+
+ /* get usb device of this usb interface */
+ sudev = sysfs_get_device_parent(suinf);
+ if (!sudev) {
+ dbg("sysfs_get_device_parent failed: %s", suinf->name);
+ continue;
+ }
+
+ if (check_new(sudev_list, sudev)) {
+ dlist_unshift(sudev_list, sudev);
+ }
+ }
+
+ dlist_for_each_data(sudev_list, sudev, struct sysfs_device) {
+ struct usbip_exported_device *edev;
+
+ edev = usbip_exported_device_new(sudev->path);
+ if (!edev) {
+ dbg("usbip_exported_device_new failed");
+ continue;
+ }
+
+ dlist_unshift(stub_driver->edev_list, (void *) edev);
+ stub_driver->ndevs++;
+ }
+
+
+ dlist_destroy(sudev_list);
+
+bye:
+
+ return 0;
+}
+
+int usbip_stub_refresh_device_list(void)
+{
+ int ret;
+
+ if (stub_driver->edev_list)
+ dlist_destroy(stub_driver->edev_list);
+
+ stub_driver->ndevs = 0;
+
+ stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
+ usbip_exported_device_delete);
+ if (!stub_driver->edev_list) {
+ dbg("dlist_new_with_delete failed");
+ return -1;
+ }
+
+ ret = refresh_exported_devices();
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int usbip_stub_driver_open(void)
+{
+ int ret;
+
+
+ stub_driver = (struct usbip_stub_driver *) calloc(1, sizeof(*stub_driver));
+ if (!stub_driver) {
+ dbg("calloc failed");
+ return -1;
+ }
+
+ stub_driver->ndevs = 0;
+
+ stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
+ usbip_exported_device_delete);
+ if (!stub_driver->edev_list) {
+ dbg("dlist_new_with_delete failed");
+ goto err;
+ }
+
+ stub_driver->sysfs_driver = open_sysfs_stub_driver();
+ if (!stub_driver->sysfs_driver)
+ goto err;
+
+ ret = refresh_exported_devices();
+ if (ret < 0)
+ goto err;
+
+ return 0;
+
+
+err:
+ if (stub_driver->sysfs_driver)
+ sysfs_close_driver(stub_driver->sysfs_driver);
+ if (stub_driver->edev_list)
+ dlist_destroy(stub_driver->edev_list);
+ free(stub_driver);
+
+ stub_driver = NULL;
+ return -1;
+}
+
+
+void usbip_stub_driver_close(void)
+{
+ if (!stub_driver)
+ return;
+
+ if (stub_driver->edev_list)
+ dlist_destroy(stub_driver->edev_list);
+ if (stub_driver->sysfs_driver)
+ sysfs_close_driver(stub_driver->sysfs_driver);
+ free(stub_driver);
+
+ stub_driver = NULL;
+}
+
+int usbip_stub_export_device(struct usbip_exported_device *edev, int sockfd)
+{
+ char attrpath[SYSFS_PATH_MAX];
+ struct sysfs_attribute *attr;
+ char sockfd_buff[30];
+ int ret;
+
+
+ if (edev->status != SDEV_ST_AVAILABLE) {
+ dbg("device not available: %s", edev->udev.busid);
+ switch( edev->status ) {
+ case SDEV_ST_ERROR:
+ dbg("status SDEV_ST_ERROR");
+ break;
+ case SDEV_ST_USED:
+ dbg("status SDEV_ST_USED");
+ break;
+ default:
+ dbg("status unknown: 0x%x", edev->status);
+ }
+ return -1;
+ }
+
+ /* only the first interface is true */
+ snprintf(attrpath, sizeof(attrpath), "%s/%s:%d.%d/%s",
+ edev->udev.path,
+ edev->udev.busid,
+ edev->udev.bConfigurationValue, 0,
+ "usbip_sockfd");
+
+ attr = sysfs_open_attribute(attrpath);
+ if (!attr) {
+ dbg("sysfs_open_attribute failed: %s", attrpath);
+ return -1;
+ }
+
+ snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd);
+
+ dbg("write: %s", sockfd_buff);
+ ret = sysfs_write_attribute(attr, sockfd_buff, strlen(sockfd_buff));
+ if (ret < 0) {
+ dbg("sysfs_write_attribute failed: sockfd %s to %s",
+ sockfd_buff, attrpath);
+ goto err_write_sockfd;
+ }
+
+ dbg("connect: %s", edev->udev.busid);
+
+err_write_sockfd:
+ sysfs_close_attribute(attr);
+
+ return ret;
+}
+
+struct usbip_exported_device *usbip_stub_get_device(int num)
+{
+ struct usbip_exported_device *edev;
+ struct dlist *dlist = stub_driver->edev_list;
+ int count = 0;
+
+ dlist_for_each_data(dlist, edev, struct usbip_exported_device) {
+ if (num == count)
+ return edev;
+ else
+ count++ ;
+ }
+
+ return NULL;
+}
diff --git a/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.h b/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.h
new file mode 100644
index 0000000..9eaf92c
--- /dev/null
+++ b/drivers/staging/usbip/userspace/libsrc/usbip_host_driver.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2005-2007 Takahiro Hirofuchi
+ */
+
+#ifndef __USBIP_STUB_DRIVER_H
+#define __USBIP_STUB_DRIVER_H
+
+#include <stdint.h>
+#include "usbip_common.h"
+
+struct usbip_stub_driver {
+ int ndevs;
+ struct sysfs_driver *sysfs_driver;
+
+ struct dlist *edev_list; /* list of exported device */
+};
+
+struct usbip_exported_device {
+ struct sysfs_device *sudev;
+
+ int32_t status;
+ struct usbip_usb_device udev;
+ struct usbip_usb_interface uinf[];
+};
+
+
+extern struct usbip_stub_driver *stub_driver;
+
+int usbip_stub_driver_open(void);
+void usbip_stub_driver_close(void);
+
+int usbip_stub_refresh_device_list(void);
+int usbip_stub_export_device(struct usbip_exported_device *edev, int sockfd);
+
+struct usbip_exported_device *usbip_stub_get_device(int num);
+
+#endif /* __USBIP_STUB_DRIVER_H */
--
1.7.5.2
--
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