summaryrefslogtreecommitdiff
path: root/fs/affs
diff options
context:
space:
mode:
authorElric Fu <elricfu1@gmail.com>2012-02-18 13:32:27 +0800
committerSarah Sharp <sarah.a.sharp@linux.intel.com>2012-02-21 15:45:25 -0800
commita45aa3b30583e7d54e7cf4fbcd0aa699348a6e5c (patch)
tree98a28b1d77d0425000a77f55868bc5367065107c /fs/affs
parentcab928ee1f221c9cc48d6615070fefe2e444384a (diff)
USB: Set hub depth after USB3 hub reset
The superspeed device attached to a USB 3.0 hub(such as VIA's) doesn't respond the address device command after resume. The root cause is the superspeed hub will miss the Hub Depth value that is used as an offset into the route string to locate the bits it uses to determine the downstream port number after reset, and all packets can't be routed to the device attached to the superspeed hub. Hub driver sends a Set Hub Depth request to the superspeed hub except for USB 3.0 root hub when the hub is initialized and doesn't send the request again after reset due to the resume process. So moving the code that sends the Set Hub Depth request to the superspeed hub from hub_configure() to hub_activate() is to cover those situations include initialization and reset. The patch should be backported to kernels as old as 2.6.39. Signed-off-by: Elric Fu <elricfu1@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/affs')
0 files changed, 0 insertions, 0 deletions