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Cleaner solution to the PrinterHost data send routine problem of embedded NULLs - use a special structure to hold the data string plus the length in bytes of the data.

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This commit is contained in:
Dean Camera 2009-07-20 03:07:27 +00:00
parent 5d8cdd9bea
commit 4c035b14f1
3 changed files with 20 additions and 9 deletions
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14
Demos/Host/Incomplete/PrinterHost/PrinterHost.c
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@ -204,12 +204,16 @@ void USB_Printer_Host(void)
/* Indicate device busy via the status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
char PCL_Test_Page[] = "\033%-12345X\033E LUFA PCL Test Page \033E\033%-12345X";
// char ESCP2_Test_Page[] = "\033@\033i\001\033X\001\060\000\r\nLUFA ESCP/2 Test Page\r\n";
Printer_Data_t TestPageData =
{
"\033%-12345X\033E LUFA PCL Test Page \033E\033%-12345X",
// "\033@\033i\001\033X\001\060\000\r\nLUFA ESCP/2 Test Page\r\n",
(sizeof(TestPageData.Data) - 1)
};
printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageData.Length);
printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), (sizeof(PCL_Test_Page) - 1));
if ((ErrorCode = Printer_SendData(PCL_Test_Page, (sizeof(PCL_Test_Page) - 1))) != PIPE_RWSTREAM_NoError)
if ((ErrorCode = Printer_SendData(&TestPageData)) != PIPE_RWSTREAM_NoError)
{
puts_P(PSTR(ESC_FG_RED "Error Sending Test Page.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);