This number facilitates user space tool to easily know what we have.
Signed-off-by: Yuyang Du <yuyang.du@xxxxxxxxx>
---
drivers/usb/usbip/vhci_sysfs.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c
index b96e5b1..af75ffb 100644
--- a/drivers/usb/usbip/vhci_sysfs.c
+++ b/drivers/usb/usbip/vhci_sysfs.c
@@ -146,6 +146,16 @@ static ssize_t nports_show(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR_RO(nports);
+static ssize_t ncontrollers_show(struct device *dev, struct device_attribute *attr,
+ char *out)
+{
+ char *s = out;
+
+ out += sprintf(out, "%d\n", vhci_num_controllers);
+ return out - s;
+}
+static DEVICE_ATTR_RO(ncontrollers);
+
/* Sysfs entry to shutdown a virtual connection */
static int vhci_port_disconnect(struct vhci_hcd *vhci, __u32 rhport)
{
@@ -404,11 +414,12 @@ int vhci_init_attr_group(void)
return ret;
}
*attrs = &dev_attr_nports.attr;
- *(attrs + 1) = &dev_attr_detach.attr;
- *(attrs + 2) = &dev_attr_attach.attr;
- *(attrs + 3) = &dev_attr_usbip_debug.attr;
+ *(attrs + 1) = &dev_attr_ncontrollers.attr;
+ *(attrs + 2) = &dev_attr_detach.attr;
+ *(attrs + 3) = &dev_attr_attach.attr;
+ *(attrs + 4) = &dev_attr_usbip_debug.attr;
for (i = 0; i < vhci_num_controllers; i++)
- *(attrs + i + 4) = &((status_attrs + i)->attr.attr);
+ *(attrs + i + 5) = &((status_attrs + i)->attr.attr);
vhci_attr_group.attrs = attrs;
return 0;
}
--
1.9.1
--
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