Daer David,
I operated USB2.0 by 2.4.22-pre2.
The following problems occurred in VT6202.
Socket status: 30000007
cs: IO port probe 0x0c00-0x0cff: clean.
cs: IO port probe 0x0100-0x04ff: excluding 0x378-0x37f 0x4d0-0x4d7
cs: IO port probe 0x0a00-0x0aff: clean.
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
spurious 8259A interrupt: IRQ7.
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
hub.c: USB device not accepting new address (error=-71)
usb.c: USB disconnect on device 00:0c.2-1 address 2
hub.c: new USB device 00:0c.2-1, assigned address 3
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3
usb-storage: host_reset() requested but not implemented
scsi: device set offline - command error recover failed: host 0 channel 0 id
0 lun 0
SCSI cdrom error : host 0 channel 0 id 0 lun 0 return code = 6050000
I/O error: dev 0b:00, sector 523912
I/O error: dev 0b:00, sector 523916
I/O error: dev 0b:00, sector 524164
I/O error: dev 0b:00, sector 523912
I investigated and corrected ehci-hcd.
When adapted in this my patch,
it is operating satisfactory one day or more.
PD720100 of NEC is also operating satisfactory.
----- patch begin
diff -Naur linux-2.4.22-pre2/drivers/usb/host/ehci-q.c
linux-2.4.22-pre2-usb/drivers/usb/host/ehci-q.c
--- linux-2.4.22-pre2/drivers/usb/host/ehci-q.c 2003-06-30
17:34:14.000000000 +0900
+++ linux-2.4.22-pre2-usb/drivers/usb/host/ehci-q.c 2003-07-03 10:34:58.
000000000 +0900
@@ -328,7 +328,7 @@
/* stop scanning when we reach qtds the hc is using */
} else if (likely (!stopped
- && HCD_IS_RUNNING (ehci->hcd.state))) {
+ || HCD_IS_RUNNING (ehci->hcd.state))) {
break;
} else {
@@ -725,11 +725,12 @@
/* NOTE: if (PIPE_INTERRUPT) { scheduler sets s-mask } */
- /* init as live, toggle clear, advance to dummy */
+ /* init as halted, toggle clear, advance to dummy */
qh->qh_state = QH_STATE_IDLE;
qh->hw_info1 = cpu_to_le32 (info1);
qh->hw_info2 = cpu_to_le32 (info2);
qh_update (ehci, qh, qh->dummy);
+ qh->hw_token = cpu_to_le32 (QTD_STS_HALT);
usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input,
1);
return qh;
}
diff -Naur linux-2.4.22-pre2/drivers/usb/hub.c
linux-2.4.22-pre2-usb/drivers/usb/hub.c
--- linux-2.4.22-pre2/drivers/usb/hub.c 2003-06-30 17:34:14.000000000 +0900
+++ linux-2.4.22-pre2-usb/drivers/usb/hub.c 2003-07-03
10:41:50.000000000 +0900
@@ -715,6 +715,8 @@
err("couldn't allocate usb_device");
break;
}
+
+ hub->children[port] = dev;
/* Reset the device */
if (usb_hub_port_reset(hub, port, dev, delay)) {
@@ -759,10 +761,8 @@
dev->bus->bus_name, dev->devpath, dev->devnum);
/* Run it through the hoops (find a driver, etc) */
- if (!usb_new_device(dev)) {
- hub->children[port] = dev;
+ if (!usb_new_device(dev))
goto done;
- }
/* Free the configuration if there was an error */
usb_free_dev(dev);
@@ -771,6 +771,7 @@
delay = HUB_LONG_RESET_TIME;
}
+ hub->children[port] = NULL;
usb_hub_port_disable(hub, port);
done:
up(&usb_address0_sem);
diff -Naur linux-2.4.22-pre2/drivers/usb/storage/scsiglue.c
linux-2.4.22-pre2-usb/drivers/usb/storage/scsiglue.c
--- linux-2.4.22-pre2/drivers/usb/storage/scsiglue.c 2003-06-13 23:51:37.
000000000 +0900
+++ linux-2.4.22-pre2-usb/drivers/usb/storage/scsiglue.c 2003-07-02
15:46:53.000000000 +0900
@@ -301,8 +301,8 @@
/* FIXME: This doesn't do anything right now */
static int host_reset( Scsi_Cmnd *srb )
{
- printk(KERN_CRIT "usb-storage: host_reset() requested but not
implemented\n" );
- return FAILED;
+ printk(KERN_CRIT "usb-storage: host_reset() requested\n" );
+ return SUCCESS;
}
-------------------- end of patch
Haruo
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