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| author | Geoff Levand <[email protected]> | 2011-11-09 00:01:18 +0000 |
|---|---|---|
| committer | Geoff Levand <[email protected]> | 2011-12-09 18:48:00 +0000 |
| commit | aaa0ef289afe9186f81e2340114ea413eef0492a (patch) | |
| tree | 0beaecc5c1de54558ce6aad072dcdcc731595d15 /drivers/usb/class/cdc-acm.c | |
| parent | usb: Fix PS3 EHCI suspend (diff) | |
| download | kernel-aaa0ef289afe9186f81e2340114ea413eef0492a.tar.gz kernel-aaa0ef289afe9186f81e2340114ea413eef0492a.zip | |
usb: PS3 EHCI QH read work-around
PS3 EHCI HC errata fix 244. The SCC EHCI HC will not correctly perform QH
reads that occur near or span a micro-frame boundry. This is due to a problem
in the Nak Count Reload Control logic (EHCI Specification 1.0 Section 4.9.1).
The work-around for this problem is for the HC driver to set I=1 (inactive) for
QHs with H=1 (list head).
Signed-off-by: Geoff Levand <[email protected]>
Acked-by: Alan Stern <[email protected]>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
0 files changed, 0 insertions, 0 deletions