diff options
| -rw-r--r-- | Documentation/kernel-parameters.txt | 19 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 11 |
2 files changed, 29 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index dd28a0d5698..d4f4875fc7c 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2253,6 +2253,25 @@ and is between 256 and 4096 characters. It is defined in the file autosuspended. Devices for which the delay is set to a negative value won't be autosuspended at all. + usbcore.usbfs_snoop= + [USB] Set to log all usbfs traffic (default 0 = off). + + usbcore.blinkenlights= + [USB] Set to cycle leds on hubs (default 0 = off). + + usbcore.old_scheme_first= + [USB] Start with the old device initialization + scheme (default 0 = off). + + usbcore.use_both_schemes= + [USB] Try the other device initialization scheme + if the first one fails (default 1 = enabled). + + usbcore.initial_descriptor_timeout= + [USB] Specifies timeout for the initial 64-byte + USB_REQ_GET_DESCRIPTOR request in milliseconds + (default 5000 = 5.0 seconds). + usbhid.mousepoll= [USBHID] The interval which mice are to be polled at. diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index b97110ca352..d73ce262c36 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -101,6 +101,15 @@ module_param (blinkenlights, bool, S_IRUGO); MODULE_PARM_DESC (blinkenlights, "true to cycle leds on hubs"); /* + * Device SATA8000 FW1.0 from DATAST0R Technology Corp requires about + * 10 seconds to send reply for the initial 64-byte descriptor request. + */ +/* define initial 64-byte descriptor request timeout in milliseconds */ +static int initial_descriptor_timeout = USB_CTRL_GET_TIMEOUT; +module_param(initial_descriptor_timeout, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(initial_descriptor_timeout, "initial 64-byte descriptor request timeout in milliseconds (default 5000 - 5.0 seconds)"); + +/* * As of 2.6.10 we introduce a new USB device initialization scheme which * closely resembles the way Windows works. Hopefully it will be compatible * with a wider range of devices than the old scheme. However some previously @@ -2538,7 +2547,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, USB_DT_DEVICE << 8, 0, buf, GET_DESCRIPTOR_BUFSIZE, - USB_CTRL_GET_TIMEOUT); + initial_descriptor_timeout); switch (buf->bMaxPacketSize0) { case 8: case 16: case 32: case 64: case 255: if (buf->bDescriptorType == |