diff options
| author | Stefan Roese <[email protected]> | 2015-01-09 14:54:56 +0100 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2015-01-18 12:31:00 +0100 |
| commit | 1fd81b7c23705eb46fd80d1eccb68fa8697cf348 (patch) | |
| tree | cb1d853520ca34b700e89742381f2f483150a4be | |
| parent | 87ed6b1067a8b8cf2bf3fd900080164cef8e0b77 (diff) | |
usb: gadget: f_dfu: Add get_alt function to pass the USB compliance test
Without this function the USB compliance test (USB 2.0 Command Verifier) will
fail in the "Interface Descriptor Test" with this error message:
FAIL
(1.2.51) A successful GetInterface request must return the alternate setting
set by a prior call to SetInterface.
Lets add this function to read back the value so that the DFU device fully
passes the USB compliance test.
Signed-off-by: Stefan Roese <[email protected]>
Cc: Roger Meier <[email protected]>
Cc: Samuel Egli <[email protected]>
Cc: Enrico Leto <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
Cc: Lukasz Majewski <[email protected]>
Cc: Marek Vasut <[email protected]>
| -rw-r--r-- | drivers/usb/gadget/f_dfu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c index ead71eba6b1..77a1567a944 100644 --- a/drivers/usb/gadget/f_dfu.c +++ b/drivers/usb/gadget/f_dfu.c @@ -780,6 +780,13 @@ static int dfu_set_alt(struct usb_function *f, unsigned intf, unsigned alt) return 0; } +static int __dfu_get_alt(struct usb_function *f, unsigned intf) +{ + struct f_dfu *f_dfu = func_to_dfu(f); + + return f_dfu->altsetting; +} + /* TODO: is this really what we need here? */ static void dfu_disable(struct usb_function *f) { @@ -806,6 +813,7 @@ static int dfu_bind_config(struct usb_configuration *c) f_dfu->usb_function.bind = dfu_bind; f_dfu->usb_function.unbind = dfu_unbind; f_dfu->usb_function.set_alt = dfu_set_alt; + f_dfu->usb_function.get_alt = __dfu_get_alt; f_dfu->usb_function.disable = dfu_disable; f_dfu->usb_function.strings = dfu_generic_strings; f_dfu->usb_function.setup = dfu_handle; |