Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 318 insertions, 0 deletions

diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
new file mode 100644
index 000000000000..ec9b3bde8ae5
--- /dev/null
+++ b/drivers/usb/core/sysfs.c
@@ -0,0 +1,318 @@
+/*
+ * drivers/usb/core/sysfs.c
+ *
+ * (C) Copyright 2002 David Brownell
+ * (C) Copyright 2002,2004 Greg Kroah-Hartman
+ * (C) Copyright 2002,2004 IBM Corp.
+ *
+ * All of the sysfs file attributes for usb devices and interfaces.
+ *
+ */
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+
+#ifdef CONFIG_USB_DEBUG
+	#define DEBUG
+#else
+	#undef DEBUG
+#endif
+#include <linux/usb.h>
+
+#include "usb.h"
+
+/* Active configuration fields */
+#define usb_actconfig_show(field, multiplier, format_string)		\
+static ssize_t  show_##field (struct device *dev, char *buf)		\
+{									\
+	struct usb_device *udev;					\
+	struct usb_host_config *actconfig;				\
+									\
+	udev = to_usb_device (dev);					\
+	actconfig = udev->actconfig;					\
+	if (actconfig)							\
+		return sprintf (buf, format_string,			\
+				actconfig->desc.field * multiplier);	\
+	else								\
+		return 0;						\
+}									\
+
+#define usb_actconfig_attr(field, multiplier, format_string)		\
+usb_actconfig_show(field, multiplier, format_string)			\
+static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
+
+usb_actconfig_attr (bNumInterfaces, 1, "%2d\n")
+usb_actconfig_attr (bmAttributes, 1, "%2x\n")
+usb_actconfig_attr (bMaxPower, 2, "%3dmA\n")
+
+static ssize_t show_configuration_string(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) || (!actconfig->string))
+		return 0;
+	len = sprintf(buf, actconfig->string, PAGE_SIZE);
+	if (len < 0)
+		return 0;
+	buf[len] = '\n';
+	buf[len+1] = 0;
+	return len+1;
+}
+static DEVICE_ATTR(configuration, S_IRUGO, show_configuration_string, NULL);
+
+/* configuration value is always present, and r/w */
+usb_actconfig_show(bConfigurationValue, 1, "%u\n");
+
+static ssize_t
+set_bConfigurationValue (struct device *dev, const char *buf, size_t count)
+{
+	struct usb_device	*udev = udev = to_usb_device (dev);
+	int			config, value;
+
+	if (sscanf (buf, "%u", &config) != 1 || config > 255)
+		return -EINVAL;
+	usb_lock_device(udev);
+	value = usb_set_configuration (udev, config);
+	usb_unlock_device(udev);
+	return (value < 0) ? value : count;
+}
+
+static DEVICE_ATTR(bConfigurationValue, S_IRUGO | S_IWUSR, 
+		show_bConfigurationValue, set_bConfigurationValue);
+
+/* String fields */
+#define usb_string_attr(name)						\
+static ssize_t  show_##name(struct device *dev, char *buf)		\
+{									\
+	struct usb_device *udev;					\
+	int len;							\
+									\
+	udev = to_usb_device (dev);					\
+	len = snprintf(buf, 256, "%s", udev->name);			\
+	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_string_attr(product);
+usb_string_attr(manufacturer);
+usb_string_attr(serial);
+
+static ssize_t
+show_speed (struct device *dev, char *buf)
+{
+	struct usb_device *udev;
+	char *speed;
+
+	udev = to_usb_device (dev);
+
+	switch (udev->speed) {
+	case USB_SPEED_LOW:
+		speed = "1.5";
+		break;
+	case USB_SPEED_UNKNOWN:
+	case USB_SPEED_FULL:
+		speed = "12";
+		break;
+	case USB_SPEED_HIGH:
+		speed = "480";
+		break;
+	default:
+		speed = "unknown";
+	}
+	return sprintf (buf, "%s\n", speed);
+}
+static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL);
+
+static ssize_t
+show_devnum (struct device *dev, char *buf)
+{
+	struct usb_device *udev;
+
+	udev = to_usb_device (dev);
+	return sprintf (buf, "%d\n", udev->devnum);
+}
+static DEVICE_ATTR(devnum, S_IRUGO, show_devnum, NULL);
+
+static ssize_t
+show_version (struct device *dev, char *buf)
+{
+	struct usb_device *udev;
+	u16 bcdUSB;
+
+	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 ssize_t
+show_maxchild (struct device *dev, char *buf)
+{
+	struct usb_device *udev;
+
+	udev = to_usb_device (dev);
+	return sprintf (buf, "%d\n", udev->maxchild);
+}
+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)				\
+{									\
+	struct usb_device *udev;					\
+									\
+	udev = to_usb_device (dev);					\
+	return sprintf (buf, format_string, udev->descriptor.field);	\
+}									\
+static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
+
+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;
+
+	sysfs_create_group(&dev->kobj, &dev_attr_grp);
+
+	if (udev->manufacturer)
+		device_create_file (dev, &dev_attr_manufacturer);
+	if (udev->product)
+		device_create_file (dev, &dev_attr_product);
+	if (udev->serial)
+		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;
+
+	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 */
+#define usb_intf_attr(field, format_string)				\
+static ssize_t								\
+show_##field (struct device *dev, char *buf)				\
+{									\
+	struct usb_interface *intf = to_usb_interface (dev);		\
+									\
+	return sprintf (buf, format_string, intf->cur_altsetting->desc.field); \
+}									\
+static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
+
+usb_intf_attr (bInterfaceNumber, "%02x\n")
+usb_intf_attr (bAlternateSetting, "%2d\n")
+usb_intf_attr (bNumEndpoints, "%02x\n")
+usb_intf_attr (bInterfaceClass, "%02x\n")
+usb_intf_attr (bInterfaceSubClass, "%02x\n")
+usb_intf_attr (bInterfaceProtocol, "%02x\n")
+
+static ssize_t show_interface_string(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 = snprintf(buf, 256, "%s", intf->cur_altsetting->string);
+	if (len < 0)
+		return 0;
+	buf[len] = '\n';
+	buf[len+1] = 0;
+	return len+1;
+}
+static DEVICE_ATTR(interface, S_IRUGO, show_interface_string, NULL);
+
+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)
+{
+	sysfs_create_group(&intf->dev.kobj, &intf_attr_grp);
+
+	if (intf->cur_altsetting->string)
+		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->string)
+		device_remove_file(&intf->dev, &dev_attr_interface);
+
+}