* drivers/usb/core/sysfs.c
*
* (C) Copyright 2002 David Brownell
- * (C) Copyright 2002 Greg Kroah-Hartman
- * (C) Copyright 2002 IBM Corp.
+ * (C) Copyright 2002,2004 Greg Kroah-Hartman
+ * (C) Copyright 2002,2004 IBM Corp.
*
* All of the sysfs file attributes for usb devices and interfaces.
*
static ssize_t show_##field (struct device *dev, char *buf) \
{ \
struct usb_device *udev; \
+ struct usb_host_config *actconfig; \
\
udev = to_usb_device (dev); \
- if (udev->actconfig) \
+ actconfig = udev->actconfig; \
+ if (actconfig) \
return sprintf (buf, format_string, \
- udev->actconfig->desc.field * multiplier); \
+ actconfig->desc.field * multiplier); \
else \
return 0; \
} \
usb_actconfig_attr (bmAttributes, 1, "%2x\n")
usb_actconfig_attr (bMaxPower, 2, "%3dmA\n")
+#define usb_actconfig_str(name, field) \
+static ssize_t show_##name(struct device *dev, char *buf) \
+{ \
+ struct usb_device *udev; \
+ struct usb_host_config *actconfig; \
+ int len; \
+ \
+ udev = to_usb_device (dev); \
+ actconfig = udev->actconfig; \
+ if (!actconfig) \
+ return 0; \
+ len = usb_string(udev, actconfig->desc.field, buf, PAGE_SIZE); \
+ if (len < 0) \
+ return 0; \
+ buf[len] = '\n'; \
+ buf[len+1] = 0; \
+ return len+1; \
+} \
+static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
+
+usb_actconfig_str (configuration, iConfiguration)
+
/* configuration value is always present, and r/w */
usb_actconfig_show(bConfigurationValue, 1, "%u\n");
if (sscanf (buf, "%u", &config) != 1 || config > 255)
return -EINVAL;
- down(&udev->serialize);
+ usb_lock_device(udev);
value = usb_set_configuration (udev, config);
- up(&udev->serialize);
+ usb_unlock_device(udev);
return (value < 0) ? value : count;
}
show_version (struct device *dev, char *buf)
{
struct usb_device *udev;
+ u16 bcdUSB;
- udev = to_usb_device (dev);
- return sprintf (buf, "%2x.%02x\n", udev->descriptor.bcdUSB >> 8,
- udev->descriptor.bcdUSB & 0xff);
+ udev = to_usb_device(dev);
+ bcdUSB = le16_to_cpu(udev->descriptor.bcdUSB);
+ return sprintf(buf, "%2x.%02x\n", bcdUSB >> 8, bcdUSB & 0xff);
}
static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
static DEVICE_ATTR(maxchild, S_IRUGO, show_maxchild, NULL);
/* Descriptor fields */
+#define usb_descriptor_attr_le16(field, format_string) \
+static ssize_t \
+show_##field (struct device *dev, char *buf) \
+{ \
+ struct usb_device *udev; \
+ \
+ udev = to_usb_device (dev); \
+ return sprintf (buf, format_string, \
+ le16_to_cpu(udev->descriptor.field)); \
+} \
+static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
+
+usb_descriptor_attr_le16(idVendor, "%04x\n")
+usb_descriptor_attr_le16(idProduct, "%04x\n")
+usb_descriptor_attr_le16(bcdDevice, "%04x\n")
+
#define usb_descriptor_attr(field, format_string) \
static ssize_t \
show_##field (struct device *dev, char *buf) \
} \
static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
-usb_descriptor_attr (idVendor, "%04x\n")
-usb_descriptor_attr (idProduct, "%04x\n")
-usb_descriptor_attr (bcdDevice, "%04x\n")
usb_descriptor_attr (bDeviceClass, "%02x\n")
usb_descriptor_attr (bDeviceSubClass, "%02x\n")
usb_descriptor_attr (bDeviceProtocol, "%02x\n")
usb_descriptor_attr (bNumConfigurations, "%d\n")
+static struct attribute *dev_attrs[] = {
+ /* current configuration's attributes */
+ &dev_attr_bNumInterfaces.attr,
+ &dev_attr_bConfigurationValue.attr,
+ &dev_attr_bmAttributes.attr,
+ &dev_attr_bMaxPower.attr,
+ /* device attributes */
+ &dev_attr_idVendor.attr,
+ &dev_attr_idProduct.attr,
+ &dev_attr_bcdDevice.attr,
+ &dev_attr_bDeviceClass.attr,
+ &dev_attr_bDeviceSubClass.attr,
+ &dev_attr_bDeviceProtocol.attr,
+ &dev_attr_bNumConfigurations.attr,
+ &dev_attr_speed.attr,
+ &dev_attr_devnum.attr,
+ &dev_attr_version.attr,
+ &dev_attr_maxchild.attr,
+ NULL,
+};
+static struct attribute_group dev_attr_grp = {
+ .attrs = dev_attrs,
+};
void usb_create_sysfs_dev_files (struct usb_device *udev)
{
struct device *dev = &udev->dev;
- /* current configuration's attributes */
- device_create_file (dev, &dev_attr_bNumInterfaces);
- device_create_file (dev, &dev_attr_bConfigurationValue);
- device_create_file (dev, &dev_attr_bmAttributes);
- device_create_file (dev, &dev_attr_bMaxPower);
-
- /* device attributes */
- device_create_file (dev, &dev_attr_idVendor);
- device_create_file (dev, &dev_attr_idProduct);
- device_create_file (dev, &dev_attr_bcdDevice);
- device_create_file (dev, &dev_attr_bDeviceClass);
- device_create_file (dev, &dev_attr_bDeviceSubClass);
- device_create_file (dev, &dev_attr_bDeviceProtocol);
- device_create_file (dev, &dev_attr_bNumConfigurations);
-
- /* speed varies depending on how you connect the device */
- device_create_file (dev, &dev_attr_speed);
- // FIXME iff there are other speed configs, show how many
+ sysfs_create_group(&dev->kobj, &dev_attr_grp);
if (udev->descriptor.iManufacturer)
device_create_file (dev, &dev_attr_manufacturer);
device_create_file (dev, &dev_attr_product);
if (udev->descriptor.iSerialNumber)
device_create_file (dev, &dev_attr_serial);
+ device_create_file (dev, &dev_attr_configuration);
+}
+
+void usb_remove_sysfs_dev_files (struct usb_device *udev)
+{
+ struct device *dev = &udev->dev;
- device_create_file (dev, &dev_attr_devnum);
- device_create_file (dev, &dev_attr_version);
- device_create_file (dev, &dev_attr_maxchild);
+ sysfs_remove_group(&dev->kobj, &dev_attr_grp);
+
+ if (udev->descriptor.iManufacturer)
+ device_remove_file(dev, &dev_attr_manufacturer);
+ if (udev->descriptor.iProduct)
+ device_remove_file(dev, &dev_attr_product);
+ if (udev->descriptor.iSerialNumber)
+ device_remove_file(dev, &dev_attr_serial);
+ device_remove_file (dev, &dev_attr_configuration);
}
/* Interface fields */
usb_intf_attr (bInterfaceClass, "%02x\n")
usb_intf_attr (bInterfaceSubClass, "%02x\n")
usb_intf_attr (bInterfaceProtocol, "%02x\n")
-usb_intf_attr (iInterface, "%02x\n")
+
+#define usb_intf_str(name, field) \
+static ssize_t show_##name(struct device *dev, char *buf) \
+{ \
+ struct usb_interface *intf; \
+ struct usb_device *udev; \
+ int len; \
+ \
+ intf = to_usb_interface (dev); \
+ udev = interface_to_usbdev (intf); \
+ len = usb_string(udev, intf->cur_altsetting->desc.field, buf, PAGE_SIZE);\
+ if (len < 0) \
+ return 0; \
+ buf[len] = '\n'; \
+ buf[len+1] = 0; \
+ return len+1; \
+} \
+static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
+
+usb_intf_str (interface, iInterface);
+
+static struct attribute *intf_attrs[] = {
+ &dev_attr_bInterfaceNumber.attr,
+ &dev_attr_bAlternateSetting.attr,
+ &dev_attr_bNumEndpoints.attr,
+ &dev_attr_bInterfaceClass.attr,
+ &dev_attr_bInterfaceSubClass.attr,
+ &dev_attr_bInterfaceProtocol.attr,
+ NULL,
+};
+static struct attribute_group intf_attr_grp = {
+ .attrs = intf_attrs,
+};
void usb_create_sysfs_intf_files (struct usb_interface *intf)
{
- device_create_file (&intf->dev, &dev_attr_bInterfaceNumber);
- device_create_file (&intf->dev, &dev_attr_bAlternateSetting);
- device_create_file (&intf->dev, &dev_attr_bNumEndpoints);
- device_create_file (&intf->dev, &dev_attr_bInterfaceClass);
- device_create_file (&intf->dev, &dev_attr_bInterfaceSubClass);
- device_create_file (&intf->dev, &dev_attr_bInterfaceProtocol);
- device_create_file (&intf->dev, &dev_attr_iInterface);
+ sysfs_create_group(&intf->dev.kobj, &intf_attr_grp);
+
+ if (intf->cur_altsetting->desc.iInterface)
+ device_create_file(&intf->dev, &dev_attr_interface);
+
+}
+
+void usb_remove_sysfs_intf_files (struct usb_interface *intf)
+{
+ sysfs_remove_group(&intf->dev.kobj, &intf_attr_grp);
+
+ if (intf->cur_altsetting->desc.iInterface)
+ device_remove_file(&intf->dev, &dev_attr_interface);
+
}