Add some missing function attributes.

This commit is contained in:
Dean Camera 2013-04-11 17:39:00 +00:00
parent d5e84db5ab
commit 334f70aa80
12 changed files with 74 additions and 52 deletions

View file

@ -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