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This commit is contained in:
Ross Owen
2014-09-11 12:40:12 +01:00
parent b185f0183c 31bfa779bb
commit 6cf8621aa1
2 changed files with 6 additions and 1 deletions
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5
module_usb_audio/endpoint0/endpoint0.c
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@@ -343,6 +343,11 @@ void Endpoint0(chanend c_ep0_out, chanend c_ep0_in, chanend c_audioControl,
/* Check the alt is in range */
if (sp.wValue <= IAP_EA_NATIVE_TRANS_ALT_COUNT)
{
/* Reset all state of endpoints associated with this interface
* when changing an alternative setting. See USB 2.0 Spec 9.1.1.5 */
XUD_ResetEpStateByAddr(ENDPOINT_ADDRESS_IN_IAP_EA_NATIVE_TRANS);
XUD_ResetEpStateByAddr(ENDPOINT_ADDRESS_OUT_IAP_EA_NATIVE_TRANS);
/* Send selected Alt interface number onto EA Native EP manager */
outuint(c_EANativeTransport_ctrl, (unsigned)sp.wValue);