Messages in this thread | | | From | "Felipe F. Tonello" <> | Subject | [PATCH v4 0/7] USB MIDI Gadget improvements and bug fixes | Date | Mon, 26 Oct 2015 16:55:02 +0000 |
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Patch 7 has changes on how to transmit IN USB requests. It implements a FIFO of pre-allocated usb requests and uses then as needed, instead of allocating then on demand. This is my initial implementation and is open for suggestions and comments.
Patches 1-6 is pretty much straight forward.
changes in v4: - pre-alocation of in requests. - more code clean up - fix memory leak on out requests - configure endpoints only when setting up MIDIStreaming interface
Felipe F. Tonello (7): usb: gadget: f_midi: Transmit data only when IN ep is enabled usb: gadget: f_midi: remove duplicated code usb: gadget: define free_ep_req as universal function usb: gadget: f_midi: fix leak on failed to enqueue out requests usb: gadget: f_midi: set altsettings only for MIDIStreaming interface usb: gadget: gmidi: Cleanup legacy code usb: gadget: f_midi: pre-allocate IN requests
drivers/usb/gadget/function/f_midi.c | 201 ++++++++++++++++++++--------- drivers/usb/gadget/function/f_sourcesink.c | 6 - drivers/usb/gadget/function/g_zero.h | 1 - drivers/usb/gadget/legacy/gmidi.c | 12 +- drivers/usb/gadget/u_f.c | 8 ++ drivers/usb/gadget/u_f.h | 3 +- 6 files changed, 151 insertions(+), 80 deletions(-)
-- 2.1.4
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