Hi,
I'm running testusb.c on the host and gadgetfs+usb.c on the device.
However testing seems to give "error 71".
What does error 71 from the test mean?
What might be causing it, and is it fixable?
Thank you.
Below are some additional details :
----------------------------
Host side (linux 2.6.15):
----------------------------
$ sudo ./testusb -D /proc/bus/usb/002/003
unknown speed /proc/bus/usb/002/003
/proc/bus/usb/002/003 test 0, 0.000006 secs
/proc/bus/usb/002/003 test 1 --> 71 (error 71)
/proc/bus/usb/002/003 test 2 --> 71 (error 71)
/proc/bus/usb/002/003 test 3 --> 71 (error 71)
/proc/bus/usb/002/003 test 4 --> 71 (error 71)
/proc/bus/usb/002/003 test 5 --> 71 (error 71)
/proc/bus/usb/002/003 test 6 --> 71 (error 71)
/proc/bus/usb/002/003 test 7 --> 71 (error 71)
/proc/bus/usb/002/003 test 8 --> 71 (error 71)
/proc/bus/usb/002/003 test 9, 0.753977 secs
/proc/bus/usb/002/003 test 10, 2.364921 secs
Test 11 crashes the host (while the gadget is unaffected).
$ ./usbtree
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
|__ Port 1: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/8p, 480M
|__ Port 1: Dev 3, If 0, Class=vend., Driver=usbtest, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
$ cat /proc/bus/usb/devices
T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0525 ProdID=a4a4 Rev= 2.12
S: Manufacturer=Licensed to Code, LLC
S:
SerialNumber=ppkqalcfkru32i4p5awhwkbx5zjbye3gy2folohnbd3ulveiffqfblglzcmz3ykC:*
#Ifs= 1 Cfg#= 3 Atr=c0 MxPwr= 2mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbtest
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=4ms
----------------------------
Host side (linux 2.6.11):
----------------------------
This is what I've added to the usb.c sample code (crosscompiled and ran
on the devce) to the autoconfig() function:
} else if (stat (DEVNAME = "amd5536udc", &statb) == 0) {
HIGHSPEED = 1;
device_desc.bcdDevice = __constant_cpu_to_le16 (0x0212),
fs_source_desc.bEndpointAddress =
hs_source_desc.bEndpointAddress
= USB_DIR_IN | 1;
EP_IN_NAME = "ep2in-bulk";
fs_sink_desc.bEndpointAddress = hs_sink_desc.bEndpointAddress
= USB_DIR_OUT | 2;
EP_OUT_NAME = "ep2out-bulk";
source_sink_intf.bNumEndpoints = 3;
fs_status_desc.bEndpointAddress
= hs_status_desc.bEndpointAddress
= USB_DIR_IN | 3; <----------- what's the 1, 2 and 3
for?
EP_STATUS_NAME = "ep1in-int";
} ....
-------------------------------------------------------------------------
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