diff options
Diffstat (limited to 'drivers/usb/misc/lvstest.c')
| -rw-r--r-- | drivers/usb/misc/lvstest.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/usb/misc/lvstest.c b/drivers/usb/misc/lvstest.c index bda82e63c1a9..218b26aab667 100644 --- a/drivers/usb/misc/lvstest.c +++ b/drivers/usb/misc/lvstest.c @@ -180,6 +180,28 @@ static ssize_t hot_reset_store(struct device *dev, } static DEVICE_ATTR_WO(hot_reset); +static ssize_t warm_reset_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_device *hdev = interface_to_usbdev(intf); + struct lvs_rh *lvs = usb_get_intfdata(intf); + int port; + int ret; + + if (kstrtoint(buf, 0, &port) || port < 1 || port > 255) + port = lvs->portnum; + + ret = lvs_rh_set_port_feature(hdev, port, USB_PORT_FEAT_BH_PORT_RESET); + if (ret < 0) { + dev_err(dev, "can't issue warm reset %d\n", ret); + return ret; + } + + return count; +} +static DEVICE_ATTR_WO(warm_reset); + static ssize_t u2_timeout_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -278,13 +300,39 @@ free_desc: } static DEVICE_ATTR_WO(get_dev_desc); +static ssize_t enable_compliance_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_device *hdev = interface_to_usbdev(intf); + struct lvs_rh *lvs = usb_get_intfdata(intf); + int port; + int ret; + + if (kstrtoint(buf, 0, &port) || port < 1 || port > 255) + port = lvs->portnum; + + ret = lvs_rh_set_port_feature(hdev, + port | (USB_SS_PORT_LS_COMP_MOD << 3), + USB_PORT_FEAT_LINK_STATE); + if (ret < 0) { + dev_err(dev, "can't enable compliance mode %d\n", ret); + return ret; + } + + return count; +} +static DEVICE_ATTR_WO(enable_compliance); + static struct attribute *lvs_attributes[] = { &dev_attr_get_dev_desc.attr, &dev_attr_u1_timeout.attr, &dev_attr_u2_timeout.attr, &dev_attr_hot_reset.attr, + &dev_attr_warm_reset.attr, &dev_attr_u3_entry.attr, &dev_attr_u3_exit.attr, + &dev_attr_enable_compliance.attr, NULL }; |