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author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2013-10-09 10:05:53 +0200 |
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committer | Felipe Balbi <balbi@ti.com> | 2013-10-10 10:21:47 -0500 |
commit | bd528d4e699b212a763eecda9cacffb4b85a5fe6 (patch) | |
tree | ecb585092a6e4375d94639e8fe2a934ee87e4b99 /drivers/usb/gadget/f_mass_storage.h | |
parent | 8502d66d33704d66d29c715ba5e91192b554cef0 (diff) | |
download | op-kernel-dev-bd528d4e699b212a763eecda9cacffb4b85a5fe6.zip op-kernel-dev-bd528d4e699b212a763eecda9cacffb4b85a5fe6.tar.gz |
usb: gadget: f_mass_storage: make sysfs interface optional
When configfs is in place, the luns will not be represented in sysfs,
so there will be no struct device associated with a lun.
In order to maintain compatibility and allow configfs adoption
sysfs is made optional in this patch.
As a consequence some debug macros need to be adjusted. Two new
fields are added to struct fsg_lun: name and name_pfx.
The "name" is for storing a string which is presented to the user
instead of the dev_name. The "name_pfx", if non-NULL, is prepended
to the "name" at printing time.
The name_pfx is for a future lun.0, which will be a default group in
mass_storage.<name>. By design at USB function configfs group's creation
time its name is not known (but instead set a bit later in
drivers/usb/gadget/configfs.c:function_make) and it is this name that
serves the purpose of the said name prefix. So instead of copying
a yet-unknown string a pointer to it is stored in struct fsg_lun.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/f_mass_storage.h')
-rw-r--r-- | drivers/usb/gadget/f_mass_storage.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h index b64761d..1b88eae 100644 --- a/drivers/usb/gadget/f_mass_storage.h +++ b/drivers/usb/gadget/f_mass_storage.h @@ -102,6 +102,8 @@ struct fsg_common *fsg_common_init(struct fsg_common *common, struct usb_composite_dev *cdev, struct fsg_config *cfg); +void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs); + void fsg_config_from_params(struct fsg_config *cfg, const struct fsg_module_parameters *params, unsigned int fsg_num_buffers); |