74 lines
2.3 KiB
Diff
74 lines
2.3 KiB
Diff
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From 5ea227caeacd504b64eef301e83fa63e0a25b3f7 Mon Sep 17 00:00:00 2001
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From: Alex Belkin <abc@telekom.ru>
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Date: Tue, 8 Mar 2011 17:57:19 +0300
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Subject: [PATCH] keep usb device by default (correct for bug introduced by tcp sub-backend
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---
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backend/xerox_mfp.c | 27 +++++++++++----------------
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1 files changed, 11 insertions(+), 16 deletions(-)
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diff --git a/backend/xerox_mfp.c b/backend/xerox_mfp.c
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index e08b50f..d4672a7 100644
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--- a/backend/xerox_mfp.c
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+++ b/backend/xerox_mfp.c
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@@ -37,10 +37,10 @@
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static const SANE_Device **devlist = NULL; /* sane_get_devices array */
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static struct device *devices_head = NULL; /* sane_get_devices list */
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-transport available_transports[] = {
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+enum { TRANSPORT_USB, TRANSPORT_TCP, TRANSPORTS_MAX };
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+transport available_transports[TRANSPORTS_MAX] = {
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{ "usb", usb_dev_request, usb_dev_open, usb_dev_close, usb_configure_device },
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{ "tcp", tcp_dev_request, tcp_dev_open, tcp_dev_close, tcp_configure_device },
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- { 0 }
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};
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static int resolv_state(int state)
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@@ -824,7 +824,13 @@ free_devices (void)
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devices_head = NULL;
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}
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-/* SANE API ignores return code of this callback */
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+static transport *tr_from_devname(SANE_String_Const devname)
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+{
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+ if (strncmp("tcp", devname, 3) == 0)
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+ return &available_transports[TRANSPORT_TCP];
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+ return &available_transports[TRANSPORT_USB];
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+}
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+
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static SANE_Status
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list_one_device (SANE_String_Const devname)
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{
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@@ -839,12 +845,7 @@ list_one_device (SANE_String_Const devname)
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return SANE_STATUS_GOOD;
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}
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- for (tr = available_transports; tr->ttype; tr++) {
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- if (!strncmp (devname, tr->ttype, strlen(tr->ttype)))
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- break;
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- }
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- if (!tr->ttype)
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- return SANE_STATUS_INVAL;
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+ tr = tr_from_devname(devname);
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dev = calloc (1, sizeof (struct device));
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if (dev == NULL)
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@@ -878,13 +879,7 @@ list_one_device (SANE_String_Const devname)
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static SANE_Status
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list_conf_devices (UNUSED (SANEI_Config * config), const char *devname)
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{
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- transport *tr;
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-
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- for (tr = available_transports; tr->ttype; tr++) {
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- if (!strncmp (devname, tr->ttype, strlen(tr->ttype)))
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- return tr->configure_device(devname, list_one_device);
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- }
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- return SANE_STATUS_INVAL;
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+ return tr_from_devname(devname)->configure_device(devname, list_one_device);
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}
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SANE_Status
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--
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1.7.1
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