diff options
Diffstat (limited to 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/persist.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/usb/persist.txt b/Documentation/usb/persist.txt index d56cb1a11550..074b159b77c2 100644 --- a/Documentation/usb/persist.txt +++ b/Documentation/usb/persist.txt | |||
| @@ -81,8 +81,11 @@ re-enumeration shows that the device now attached to that port has the | |||
| 81 | same descriptors as before, including the Vendor and Product IDs, then | 81 | same descriptors as before, including the Vendor and Product IDs, then |
| 82 | the kernel continues to use the same device structure. In effect, the | 82 | the kernel continues to use the same device structure. In effect, the |
| 83 | kernel treats the device as though it had merely been reset instead of | 83 | kernel treats the device as though it had merely been reset instead of |
| 84 | unplugged. The same thing happens if the host controller is in the | 84 | unplugged. |
| 85 | expected state but a USB device was unplugged and then replugged. | 85 | |
| 86 | The same thing happens if the host controller is in the expected state | ||
| 87 | but a USB device was unplugged and then replugged, or if a USB device | ||
| 88 | fails to carry out a normal resume. | ||
| 86 | 89 | ||
| 87 | If no device is now attached to the port, or if the descriptors are | 90 | If no device is now attached to the port, or if the descriptors are |
| 88 | different from what the kernel remembers, then the treatment is what | 91 | different from what the kernel remembers, then the treatment is what |