diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/PrinterClassHost.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/PrinterClassHost.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/PrinterClassHost.h b/LUFA/Drivers/USB/Class/Host/PrinterClassHost.h index 9a7cb0845..792f86564 100644 --- a/LUFA/Drivers/USB/Class/Host/PrinterClassHost.h +++ b/LUFA/Drivers/USB/Class/Host/PrinterClassHost.h @@ -231,7 +231,7 @@ * * \return Total number of buffered bytes received from the device. */ - uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo); + uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** Reads a byte of data from the device. If no data is waiting to be read of if a USB device is not connected, the function * returns a negative value. The \ref PRNT_Host_BytesReceived() function may be queried in advance to determine how many bytes @@ -244,7 +244,7 @@ * * \return Next received byte from the device, or a negative value if no data received. */ - int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo); + int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a * Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus |