Query: usb_string_ids_n
OS: centos
Section: 9
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
USB_STRING_IDS_N(9) Kernel Mode Gadget API USB_STRING_IDS_N(9)NAMEusb_string_ids_n - allocate unused string IDs in batchSYNOPSISint usb_string_ids_n(struct usb_composite_dev * c, unsigned n);ARGUMENTSc the device whose string descriptor IDs are being allocated n number of string IDs to allocateCONTEXTsingle threaded during gadget setupDESCRIPTIONReturns the first requested ID. This ID and next n-1 IDs are now valid IDs. At least provided that n is non-zero because if it is, returns last requested ID which is now very useful information. usb_string_ids_n() is called from bind callbacks to allocate string IDs. Drivers for functions, configurations, or gadgets will then store that ID in the appropriate descriptors and string table. All string identifier should be allocated using this, usb_string_id() or usb_string_ids_n() routine, to ensure that for example different functions don't wrongly assign different meanings to the same identifier.AUTHORDavid Brownell <dbrownell@users.sourceforge.net> Author.COPYRIGHTKernel Hackers Manual 3.10 June 2014 USB_STRING_IDS_N(9)
Related Man Pages |
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struct_usb_gadget_driver(9) - centos |
struct_usb_composite_driver(9) - centos |
usb_interface_id(9) - centos |
struct_usb_composite_dev(9) - suse |
usb_gadget_config_buf(9) - suse |
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