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USB change speed

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USB changes the speed according to the port status

Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
This commit is contained in:
Michael Trimarchi 2008-12-18 10:05:37 +01:00 committed by Remy Bohmer
parent c0d722fe7e
commit 366523c26b
1 changed files with 10 additions and 2 deletions
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12
common/usb.c
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@ -1061,10 +1061,12 @@ static int hub_port_reset(struct usb_device *dev, int port,
} }
portstatus = le16_to_cpu(portsts.wPortStatus); portstatus = le16_to_cpu(portsts.wPortStatus);
portchange = le16_to_cpu(portsts.wPortChange); portchange = le16_to_cpu(portsts.wPortChange);
USB_HUB_PRINTF("portstatus %x, change %x, %s\n", USB_HUB_PRINTF("portstatus %x, change %x, %s\n",
portstatus, portchange, portstatus, portchange,
portstatus&(1<<USB_PORT_FEAT_LOWSPEED) ? \ portstatus & (1 << USB_PORT_FEAT_LOWSPEED) ? \
"Low Speed" : "High Speed"); "Low Speed" : "High Speed");
USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \ USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \
" USB_PORT_STAT_ENABLE %d\n", " USB_PORT_STAT_ENABLE %d\n",
(portchange & USB_PORT_STAT_C_CONNECTION) ? 1 : 0, (portchange & USB_PORT_STAT_C_CONNECTION) ? 1 : 0,
@ -1136,7 +1138,13 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)
/* Allocate a new device struct for it */ /* Allocate a new device struct for it */
usb = usb_alloc_new_device(); usb = usb_alloc_new_device();
usb->speed = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0;
if (portstatus & USB_PORT_STAT_HIGH_SPEED)
usb->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
usb->speed = USB_SPEED_LOW;
else
usb->speed = USB_SPEED_FULL;
dev->children[port] = usb; dev->children[port] = usb;
usb->parent = dev; usb->parent = dev;