evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

USB: composite: Advertise USB version as 0x200 if max speed is HS

Browse source 
Currently driver is advertising as USB device as 0x210 even if
maximum speed is limited to high speed mode. This is causing throughput
degradation for RNDIS with host machines that enables USB2 LPM. Hence
disable USB2 LPM for device having maximum speed limited to high speed
mode by advertizing as 0x200.

Change-Id: I9d7d62f35284f11faa7e933e755277d24dce1038
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
This commit is contained in:
Vijayavardhan Vennapusa 2017-05-16 16:54:14 +05:30
parent 406ab7d2d4
commit 325dc282c7
1 changed files with 0 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/usb/gadget/composite.c
View file

@ -1654,9 +1654,6 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
DBG(cdev,
"Config HS device with LPM(L1)\n");
}
} else if (!disable_l1_for_hs) {
cdev->desc.bcdUSB = cpu_to_le16(0x0210);
DBG(cdev, "Config HS device with LPM(L1)\n");
}
value = min(w_length, (u16) sizeof cdev->desc);