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f_sdp: Change bInterval of interrupt endpoint to 3

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Since the USB HID limits the maximum bandwidth(3072) for interrupt
endpoint transfers, when the bInterval set to 1, we can only support 3
boards to run sdp at the same time. In order to support more boards,
change the bInterval of interrupt endpoint to 3, which will not affect
the transmission speed.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Sherry Sun
2020-08-18 18:16:49 +08:00
committed by Marek Vasut
parent 9e06c5c55a
commit 405217a033
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/gadget/f_sdp.c
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@@ -186,7 +186,7 @@ static struct usb_endpoint_descriptor in_hs_desc = {
.bEndpointAddress = 1 | USB_DIR_IN, .bEndpointAddress = 1 | USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_INT, .bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 512, .wMaxPacketSize = 512,
.bInterval = 1, .bInterval = 3,
}; };
static struct usb_endpoint_descriptor out_hs_desc = { static struct usb_endpoint_descriptor out_hs_desc = {
@@ -196,7 +196,7 @@ static struct usb_endpoint_descriptor out_hs_desc = {
.bEndpointAddress = 1 | USB_DIR_OUT, .bEndpointAddress = 1 | USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_INT, .bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = SDP_HID_PACKET_SIZE_EP1, .wMaxPacketSize = SDP_HID_PACKET_SIZE_EP1,
.bInterval = 1, .bInterval = 3,
}; };
static struct usb_descriptor_header *sdp_runtime_descs[] = { static struct usb_descriptor_header *sdp_runtime_descs[] = {