diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-01-12 01:47:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-25 15:48:28 +0300 |
| commit | 368fbc34c4602accd1ba76d03b4cce07c9c90cf7 (patch) | |
| tree | 5bf0622ee5a9c29018379a4c1b5456a41b8e49f1 /drivers/usb/host/fhci-hub.c | |
| parent | 3eb598ded1cfb0dc337d4e82cb274e583856338f (diff) | |
| download | linux-368fbc34c4602accd1ba76d03b4cce07c9c90cf7.tar.xz | |
fhci-hub: no need to overwrite byte 3 of the Hub Descriptor
The code handling Get Hub Descriptor request copies data from root_hub_des[],
then overwrites byte 3 with real 'wHubCharacteristics' value. There's no need
to overwrite, we can substitute the real value right into root_hub_des[3].
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/fhci-hub.c')
| -rw-r--r-- | drivers/usb/host/fhci-hub.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c index 6af2512f8378..4d061a26b1ad 100644 --- a/drivers/usb/host/fhci-hub.c +++ b/drivers/usb/host/fhci-hub.c @@ -32,8 +32,8 @@ static u8 root_hub_des[] = { 0x09, /* blength */ 0x29, /* bDescriptorType;hub-descriptor */ 0x01, /* bNbrPorts */ - 0x00, /* wHubCharacteristics */ - 0x00, + 0x11, /* wHubCharacteristics */ + 0x00, /* per-port power, no overcurrent */ 0x01, /* bPwrOn2pwrGood;2ms */ 0x00, /* bHubContrCurrent;0mA */ 0x00, /* DeviceRemoveable */ @@ -272,7 +272,6 @@ int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case GetHubDescriptor: memcpy(buf, root_hub_des, sizeof(root_hub_des)); - buf[3] = 0x11; /* per-port power, no ovrcrnt */ len = (buf[0] < wLength) ? buf[0] : wLength; break; case GetHubStatus: |