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Add new USB_Host_SetInterfaceAltSetting() convenience function.

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This commit is contained in:
Dean Camera 2011-05-27 07:33:58 +00:00
parent 348bf33b18
commit cc9b190919
7 changed files with 68 additions and 24 deletions
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17
LUFA/Drivers/USB/Core/AVR8/Host_AVR8.c
View file

@ -351,5 +351,22 @@ uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)
return USB_Host_SendControlRequest(NULL);
}
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceNum,
const uint8_t AltSetting)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_SetInterface,
.wValue = AltSetting,
.wIndex = InterfaceNum,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(NULL);
}
#endif

13
LUFA/Drivers/USB/Core/AVR8/Host_AVR8.h
View file

@ -330,6 +330,19 @@
*/
uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointIndex);
/** Selects a given alternative setting for the specfied interface, via a SET INTERFACE standard request to
* the attached device.
*
* \note After this routine returns, the control pipe will be selected.
*
* \param[in] InterfaceIndex Index of the interface whose alternative setting is to be altered.
* \param[in] AltSetting Index of the interface's alternative setting which is to be selected.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceNum,
const uint8_t AltSetting);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */

17
LUFA/Drivers/USB/Core/UC3/Host_UC3.c
View file

@ -351,5 +351,22 @@ uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)
return USB_Host_SendControlRequest(NULL);
}
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceNum,
const uint8_t AltSetting)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_SetInterface,
.wValue = AltSetting,
.wIndex = InterfaceNum,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(NULL);
}
#endif

13
LUFA/Drivers/USB/Core/UC3/Host_UC3.h
View file

@ -331,6 +331,19 @@
*/
uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointIndex);
/** Selects a given alternative setting for the specfied interface, via a SET INTERFACE standard request to
* the attached device.
*
* \note After this routine returns, the control pipe will be selected.
*
* \param[in] InterfaceIndex Index of the interface whose alternative setting is to be altered.
* \param[in] AltSetting Index of the interface's alternative setting which is to be selected.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceNum,
const uint8_t AltSetting);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */