Add support for Equinox serial hubs to the serial backend

[michaelrsweet]

Version: 1.2-feature
CUPS.org User: mattc.wselectric

The serial backend does not support Equinox serial hubs. I have attached a small patch for CUPS 1.1.19 that I used to add support for these devices to the serial backend.

For additional information on the product I'm referring to, see the following links:

http://www.equinox.com/
http://www.equinox.com/ESP_Serial_Hubs67.html

I have used this patch on CUPS 1.1.19 on RedHat Enterprise Linux 2.1, as well as CUPS 1.1.17 on RedHat 8.0.

Please note that due to an apparent bug in the product (which has been reported to the manufacturer), restoring the port settings after a job has been spooled can cause a print job to become corrupted under certain conditions. The workaround is to set the port to the proper settings outside of CUPS, or to disable restoring the port settings in the serial backend (this is the option I've used).

[michaelrsweet]

CUPS.org User: mike

Reassigned to 1.2.

[michaelrsweet]

CUPS.org User: mike

Fixed in Subversion repository.

[michaelrsweet]

"equinox.diff":

--- serial.orig Fri Jan 16 14:24:44 2004
+++ serial.c Fri Jan 16 14:26:16 2004
@@ -546,7 +546,21 @@
int i; /* Looping var /
int fd; / File descriptor /
char device[255]; / Device filename */

• int p; /* Looping var */
• for (i = 0; i < 64; i ++)
• {
• for (p = 0; p < 8; p ++)
• {

•  sprintf(device, "/dev/ttyQ%02de%d", i, p);
  

•  if ((fd = open(device, O_WRONLY | O_NOCTTY | O_NDELAY)) >= 0)
  

•  {
  

•    close(fd);
  

•    printf("serial serial:%s?baud=115200 \"Unknown\" \"ESP %d Port #%d\"\n",
  

•           device, i, p + 1);
  

•  }
  

• }
• }

for (i = 0; i < 100; i ++)
{