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path: root/drivers/usb/gadget/g_ffs.c
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* USB: gadget: g_fs: code cleanupMichal Nazarewicz2010-08-10
| | | | | | | | | | | | | | | | | | | | | | This commit cleans the g_fs gadget hopefully making it more readable. This is achieved by usage of the usb_string_ids_tab() function for batch string IDs registration as well as generalising configuration so that a single routine is used to add each configuration and bind interfaces. As an effect, the code is shorter and has fewer #ifdefs. Moreover, in some circumstances previous code #defined CONFIG_USB_FUNCTIONFS_GENERIC macro to prevent a situation where gadget with no configurations is built. This code removes the #define form source code and achieves the same effect using select in Kconfig. This patch also changes wording and names of the Kconfig options. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: f_fs: functionfs_add() renamed to functionfs_bind_config()Michal Nazarewicz2010-08-10
| | | | | | | | | | | FunctionFS had a bit unique name for function used to add it to USB configuration. Renamed as to match naming convention of other functions. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: g_fs: possible invalid pointer reference bug fixedMichal Nazarewicz2010-06-30
| | | | | | | | | | | | | | | | | | | | During __gfs_do_config() some invalid pointers may be left in usb_configuration::interfaces array from previous calls to the __gfs_do_config() for the same configuration. This will always happen if an user space function which has a fewer then the last user space function registers itself. Composite's set_config() function that a pointer after the last interface in usb_configuration::interface is NULL unless the array is full. This patch makes the __gfs_do_config() make sure that if the usb_configuration::interface is not full then a pointer after the last interface is NULL. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: g_ffs: the FunctionFS gadget driverMichal Nazarewicz2010-05-20
The Function Filesystem (FunctioFS) lets one create USB composite functions in user space in the same way as GadgetFS lets one create USB gadgets in user space. This allows creation of composite gadgets such that some of the functions are implemented in kernel space (for instance Ethernet, serial or mass storage) and other are implemented in user space. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>