diff options
| author | Soeren Moch <smoch@web.de> | 2014-11-08 07:02:14 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-11-08 12:03:35 +0100 |
| commit | 6a559bbe2f60ab64e28662f7ab52551a2eaa7163 (patch) | |
| tree | 38c4d27f11842127e4fd5a6cff2d5b3fb0a4899e | |
| parent | 3908f16f859c6b304fae050102d45be5a2e295bf (diff) | |
usb_storage: blacklist Enclosure Service Devices
Skip enclosure service devices when probing for usb storage devices.
This avoids long timeouts when probing for external usb harddisks
which provide "Enclosure Services".
Signed-off-by: Soeren Moch <smoch@web.de>
--
This is a new version of the patch
"usb_storage: skip all unknown devices when probing"
http://http://lists.denx.de/pipermail/u-boot/2014-November/194622.html
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
| -rw-r--r-- | common/usb_storage.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/common/usb_storage.c b/common/usb_storage.c index eb7706c100c..1411737bed8 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -1351,8 +1351,11 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, perq = usb_stor_buf[0]; modi = usb_stor_buf[1]; - if ((perq & 0x1f) == 0x1f) { - /* skip unknown devices */ + /* + * Skip unknown devices (0x1f) and enclosure service devices (0x0d), + * they would not respond to test_unit_ready . + */ + if (((perq & 0x1f) == 0x1f) || ((perq & 0x1f) == 0x0d)) { return 0; } if ((modi&0x80) == 0x80) { |