diff options
Diffstat (limited to 'drivers/usb/core/sysfs.c')
| -rw-r--r-- | drivers/usb/core/sysfs.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 818e4a024d0d..3f81a3dc6867 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -17,7 +17,7 @@ #include "usb.h" /* Active configuration fields */ -#define usb_actconfig_show(field, multiplier, format_string) \ +#define usb_actconfig_show(field, format_string) \ static ssize_t show_##field(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ @@ -28,18 +28,31 @@ static ssize_t show_##field(struct device *dev, \ actconfig = udev->actconfig; \ if (actconfig) \ return sprintf(buf, format_string, \ - actconfig->desc.field * multiplier); \ + actconfig->desc.field); \ 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); +#define usb_actconfig_attr(field, format_string) \ + usb_actconfig_show(field, format_string) \ + static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL); + +usb_actconfig_attr(bNumInterfaces, "%2d\n") +usb_actconfig_attr(bmAttributes, "%2x\n") -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_bMaxPower(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_device *udev; + struct usb_host_config *actconfig; + + udev = to_usb_device(dev); + actconfig = udev->actconfig; + if (!actconfig) + return 0; + return sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig)); +} +static DEVICE_ATTR(bMaxPower, S_IRUGO, show_bMaxPower, NULL); static ssize_t show_configuration_string(struct device *dev, struct device_attribute *attr, char *buf) @@ -56,7 +69,7 @@ static ssize_t show_configuration_string(struct device *dev, 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"); +usb_actconfig_show(bConfigurationValue, "%u\n"); static ssize_t set_bConfigurationValue(struct device *dev, struct device_attribute *attr, |