diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2016-12-08 18:10:49 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2017-02-26 13:24:30 +0100 |
| commit | 8987012fe5a8bc226d1b3f5187c152b8d85a2dcd (patch) | |
| tree | 7ba71d89b6c889ed5b514ed1edfae90a66e1082a /drivers/usb/gadget | |
| parent | 282b72082f68254edd9631c8c04354e0fb63c2f6 (diff) | |
usb: gadget: dfu: add functional descriptor in descriptor set
The "DFU descriptor set" must contain the "DFU functional descriptor"
but it is missing today in U-Boot code
(cf: DFU spec 1.1, chapter 4.2 DFU Mode Descriptor Set)
This patch only allocate buffer and copy DFU functional descriptor
after interfaces.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/f_dfu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c index 8e7c981657..73b32f8ae5 100644 --- a/drivers/usb/gadget/f_dfu.c +++ b/drivers/usb/gadget/f_dfu.c @@ -654,7 +654,7 @@ static int dfu_prepare_function(struct f_dfu *f_dfu, int n) struct usb_interface_descriptor *d; int i = 0; - f_dfu->function = calloc(sizeof(struct usb_descriptor_header *), n + 1); + f_dfu->function = calloc(sizeof(struct usb_descriptor_header *), n + 2); if (!f_dfu->function) goto enomem; @@ -673,6 +673,14 @@ static int dfu_prepare_function(struct f_dfu *f_dfu, int n) f_dfu->function[i] = (struct usb_descriptor_header *)d; } + + /* add DFU Functional Descriptor */ + f_dfu->function[i] = calloc(sizeof(dfu_func), 1); + if (!f_dfu->function[i]) + goto enomem; + memcpy(f_dfu->function[i], &dfu_func, sizeof(dfu_func)); + + i++; f_dfu->function[i] = NULL; return 0; |