From e55ba06b41d4858564df57bd751d9e21c83e3fc6 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 9 Apr 2009 03:35:03 +0200
Subject: deal with ATA/USB truncation

---
 atasmart.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/atasmart.c b/atasmart.c
index 8e4d522..0a2e1bc 100644
--- a/atasmart.c
+++ b/atasmart.c
@@ -660,10 +660,12 @@ int sk_disk_smart_status(SkDisk *d, SkBool *good) {
         if ((ret = disk_command(d, SK_ATA_COMMAND_SMART, SK_DIRECTION_NONE, cmd, NULL, 0)) < 0)
                 return ret;
 
-        if (cmd[3] == htons(0x00C2U) &&
+        /* SAT/USB bridges truncate packets, so we only check for 4F,
+         * not for 2C on those */
+        if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == htons(0x00C2U)) &&
             cmd[4] == htons(0x4F00U))
                 *good = TRUE;
-        else if (cmd[3] == htons(0x002CU) &&
+        else if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == htons(0x002CU)) &&
                  cmd[4] == htons(0xF400U))
                 *good = FALSE;
         else {
-- 
cgit