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cups
_service:tar_scm:cups-usb-paperout.patch
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File _service:tar_scm:cups-usb-paperout.patch of Package cups
diff -up cups-1.5b1/backend/usb-unix.c.usb-paperout cups-1.5b1/backend/usb-unix.c --- cups-1.5b1/backend/usb-unix.c.usb-paperout 2011-05-24 15:51:39.000000000 +0200 +++ cups-1.5b1/backend/usb-unix.c 2011-05-24 15:51:39.000000000 +0200 @@ -30,6 +30,11 @@ #include <sys/select.h> +#ifdef __linux +#include <sys/ioctl.h> +#include <linux/lp.h> +#endif /* __linux */ + /* * Local functions... @@ -334,7 +339,19 @@ open_device(const char *uri, /* I - Dev if (!strncmp(uri, "usb:/dev/", 9)) #ifdef __linux { - return (open(uri + 4, O_RDWR | O_EXCL)); + fd = open(uri + 4, O_RDWR | O_EXCL); + + if (fd != -1) + { + /* + * Tell the driver to return from write() with errno==ENOSPACE + * on paper-out. + */ + unsigned int t = 1; + ioctl (fd, LPABORT, &t); + } + + return fd; } else if (!strncmp(uri, "usb://", 6)) { @@ -400,7 +417,14 @@ open_device(const char *uri, /* I - Dev if (!strcmp(uri, device_uri)) { /* - * Yes, return this file descriptor... + * Yes, tell the driver to return from write() with + * errno==ENOSPACE on paper-out. + */ + unsigned int t = 1; + ioctl (fd, LPABORT, &t); + + /* + * Return this file descriptor... */ fprintf(stderr, "DEBUG: Printer using device file \"%s\"...\n",
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