From 14574b546d87a282cc9ea0f43935cee6bfc97bf8 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Wed, 18 Jun 2014 14:24:49 +0200 Subject: [PATCH] usb: gadget: OS descriptors: provide interface directory names Function's interface directories need to be created when the function directory is created, but interface numbers are not known until the gadget is ready and bound to udc, so we cannot use numbers as part of interface directory names. Let the client decide what names to use. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Felipe Balbi --- drivers/usb/gadget/configfs.c | 5 +++-- drivers/usb/gadget/configfs.h | 1 + drivers/usb/gadget/f_rndis.c | 4 +++- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index fadd6be..9714214 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1216,6 +1216,7 @@ static struct configfs_attribute *interf_grp_attrs[] = { int usb_os_desc_prepare_interf_dir(struct config_group *parent, int n_interf, struct usb_os_desc **desc, + char **names, struct module *owner) { struct config_group **f_default_groups, *os_desc_group, @@ -1257,8 +1258,8 @@ int usb_os_desc_prepare_interf_dir(struct config_group *parent, d = desc[n_interf]; d->owner = owner; config_group_init_type_name(&d->group, "", interface_type); - config_item_set_name(&d->group.cg_item, "interface.%d", - n_interf); + config_item_set_name(&d->group.cg_item, "interface.%s", + names[n_interf]); interface_groups[n_interf] = &d->group; } diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h index a14ac79..36c468c 100644 --- a/drivers/usb/gadget/configfs.h +++ b/drivers/usb/gadget/configfs.h @@ -8,6 +8,7 @@ void unregister_gadget_item(struct config_item *item); int usb_os_desc_prepare_interf_dir(struct config_group *parent, int n_interf, struct usb_os_desc **desc, + char **names, struct module *owner); static inline struct usb_os_desc *to_usb_os_desc(struct config_item *item) diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 31274f7..9c41e95 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -905,6 +905,7 @@ static struct usb_function_instance *rndis_alloc_inst(void) { struct f_rndis_opts *opts; struct usb_os_desc *descs[1]; + char *names[1]; opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) @@ -922,8 +923,9 @@ static struct usb_function_instance *rndis_alloc_inst(void) INIT_LIST_HEAD(&opts->rndis_os_desc.ext_prop); descs[0] = &opts->rndis_os_desc; + names[0] = "rndis"; usb_os_desc_prepare_interf_dir(&opts->func_inst.group, 1, descs, - THIS_MODULE); + names, THIS_MODULE); config_group_init_type_name(&opts->func_inst.group, "", &rndis_func_type); -- 2.7.4