diff options
| -rw-r--r-- | drivers/usb/gadget/configfs.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 025129942894..c82b7bc98dea 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -291,6 +291,36 @@ err: return ret; } +static ssize_t gadget_driver_match_existing_only_store(struct config_item *item, + const char *page, size_t len) +{ + struct usb_gadget_driver *gadget_driver = + &(to_gadget_info(item)->composite.gadget_driver); + bool match_existing_only; + int ret; + + ret = kstrtobool(page, &match_existing_only); + if (ret) + return ret; + + if (match_existing_only) + gadget_driver->match_existing_only = 1; + else + gadget_driver->match_existing_only = 0; + + return len; +} + +static ssize_t gadget_driver_match_existing_only_show(struct config_item *item, + char *page) +{ + struct usb_gadget_driver *gadget_driver = + &(to_gadget_info(item)->composite.gadget_driver); + bool match_existing_only = !!gadget_driver->match_existing_only; + + return sprintf(page, "%s\n", match_existing_only ? "true" : "false"); +} + CONFIGFS_ATTR(gadget_dev_desc_, bDeviceClass); CONFIGFS_ATTR(gadget_dev_desc_, bDeviceSubClass); CONFIGFS_ATTR(gadget_dev_desc_, bDeviceProtocol); @@ -300,6 +330,7 @@ CONFIGFS_ATTR(gadget_dev_desc_, idProduct); CONFIGFS_ATTR(gadget_dev_desc_, bcdDevice); CONFIGFS_ATTR(gadget_dev_desc_, bcdUSB); CONFIGFS_ATTR(gadget_dev_desc_, UDC); +CONFIGFS_ATTR(gadget_, driver_match_existing_only); static struct configfs_attribute *gadget_root_attrs[] = { &gadget_dev_desc_attr_bDeviceClass, @@ -311,6 +342,7 @@ static struct configfs_attribute *gadget_root_attrs[] = { &gadget_dev_desc_attr_bcdDevice, &gadget_dev_desc_attr_bcdUSB, &gadget_dev_desc_attr_UDC, + &gadget_attr_driver_match_existing_only, NULL, }; |