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path: root/drivers/usb/core/sysfs.c
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Diffstat (limited to 'drivers/usb/core/sysfs.c')
-rw-r--r--drivers/usb/core/sysfs.c56
1 files changed, 44 insertions, 12 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index ec9b3bde8ae..740cb4c668d 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -24,7 +24,7 @@
/* Active configuration fields */
#define usb_actconfig_show(field, multiplier, format_string) \
-static ssize_t show_##field (struct device *dev, char *buf) \
+static ssize_t show_##field (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct usb_device *udev; \
struct usb_host_config *actconfig; \
@@ -46,7 +46,7 @@ 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)
+static ssize_t show_configuration_string(struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
struct usb_host_config *actconfig;
@@ -69,7 +69,7 @@ static DEVICE_ATTR(configuration, S_IRUGO, show_configuration_string, NULL);
usb_actconfig_show(bConfigurationValue, 1, "%u\n");
static ssize_t
-set_bConfigurationValue (struct device *dev, const char *buf, size_t count)
+set_bConfigurationValue (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct usb_device *udev = udev = to_usb_device (dev);
int config, value;
@@ -87,7 +87,7 @@ static DEVICE_ATTR(bConfigurationValue, S_IRUGO | S_IWUSR,
/* String fields */
#define usb_string_attr(name) \
-static ssize_t show_##name(struct device *dev, char *buf) \
+static ssize_t show_##name(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct usb_device *udev; \
int len; \
@@ -107,7 +107,7 @@ usb_string_attr(manufacturer);
usb_string_attr(serial);
static ssize_t
-show_speed (struct device *dev, char *buf)
+show_speed (struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
char *speed;
@@ -133,7 +133,7 @@ show_speed (struct device *dev, char *buf)
static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL);
static ssize_t
-show_devnum (struct device *dev, char *buf)
+show_devnum (struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
@@ -143,7 +143,7 @@ show_devnum (struct device *dev, char *buf)
static DEVICE_ATTR(devnum, S_IRUGO, show_devnum, NULL);
static ssize_t
-show_version (struct device *dev, char *buf)
+show_version (struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
u16 bcdUSB;
@@ -155,7 +155,7 @@ show_version (struct device *dev, char *buf)
static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
static ssize_t
-show_maxchild (struct device *dev, char *buf)
+show_maxchild (struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
@@ -167,7 +167,7 @@ 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) \
+show_##field (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct usb_device *udev; \
\
@@ -183,7 +183,7 @@ usb_descriptor_attr_le16(bcdDevice, "%04x\n")
#define usb_descriptor_attr(field, format_string) \
static ssize_t \
-show_##field (struct device *dev, char *buf) \
+show_##field (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct usb_device *udev; \
\
@@ -254,7 +254,7 @@ void usb_remove_sysfs_dev_files (struct usb_device *udev)
/* Interface fields */
#define usb_intf_attr(field, format_string) \
static ssize_t \
-show_##field (struct device *dev, char *buf) \
+show_##field (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct usb_interface *intf = to_usb_interface (dev); \
\
@@ -269,7 +269,7 @@ 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)
+static ssize_t show_interface_string(struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_interface *intf;
struct usb_device *udev;
@@ -286,6 +286,37 @@ static ssize_t show_interface_string(struct device *dev, char *buf)
}
static DEVICE_ATTR(interface, S_IRUGO, show_interface_string, NULL);
+static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct usb_interface *intf;
+ struct usb_device *udev;
+ int len;
+
+ intf = to_usb_interface(dev);
+ udev = interface_to_usbdev(intf);
+
+ len = sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct),
+ le16_to_cpu(udev->descriptor.bcdDevice),
+ udev->descriptor.bDeviceClass,
+ udev->descriptor.bDeviceSubClass,
+ udev->descriptor.bDeviceProtocol);
+ buf += len;
+
+ if (udev->descriptor.bDeviceClass == 0) {
+ struct usb_host_interface *alt = intf->cur_altsetting;
+
+ return len + sprintf(buf, "%02Xisc%02Xip%02X\n",
+ alt->desc.bInterfaceClass,
+ alt->desc.bInterfaceSubClass,
+ alt->desc.bInterfaceProtocol);
+ } else {
+ return len + sprintf(buf, "*isc*ip*\n");
+ }
+}
+static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);
+
static struct attribute *intf_attrs[] = {
&dev_attr_bInterfaceNumber.attr,
&dev_attr_bAlternateSetting.attr,
@@ -293,6 +324,7 @@ static struct attribute *intf_attrs[] = {
&dev_attr_bInterfaceClass.attr,
&dev_attr_bInterfaceSubClass.attr,
&dev_attr_bInterfaceProtocol.attr,
+ &dev_attr_modalias.attr,
NULL,
};
static struct attribute_group intf_attr_grp = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 14:49:26 +0000