Changeset 820d9bc in mainline for uspace/lib/usb/src/usb.c
- Timestamp:
- 2017-11-22T13:54:05Z (6 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- d42ba37
- Parents:
- 64fea02
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
uspace/lib/usb/src/usb.c
r64fea02 r820d9bc 119 119 } 120 120 121 /** Check setup packet data for signs of toggle reset.122 *123 * @param[in] requst Setup requst data.124 *125 * @retval -1 No endpoints need reset.126 * @retval 0 All endpoints need reset.127 * @retval >0 Specified endpoint needs reset.128 *129 */130 toggle_reset_mode_t usb_request_get_toggle_reset_mode(131 const usb_device_request_setup_packet_t *request)132 {133 assert(request);134 switch (request->request)135 {136 /* Clear Feature ENPOINT_STALL */137 case USB_DEVREQ_CLEAR_FEATURE: /*resets only cleared ep */138 /* 0x2 ( HOST to device | STANDART | TO ENPOINT) */139 if ((request->request_type == 0x2) &&140 (request->value == USB_FEATURE_ENDPOINT_HALT))141 return RESET_EP;142 break;143 case USB_DEVREQ_SET_CONFIGURATION:144 case USB_DEVREQ_SET_INTERFACE:145 /* Recipient must be device, this resets all endpoints,146 * In fact there should be no endpoints but EP 0 registered147 * as different interfaces use different endpoints,148 * unless you're changing configuration or alternative149 * interface of an already setup device. */150 if (!(request->request_type & SETUP_REQUEST_TYPE_DEVICE_TO_HOST))151 return RESET_ALL;152 break;153 default:154 break;155 }156 157 return RESET_NONE;158 }159 160 121 /** 161 122 * @}
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