On Thu, 31 Oct 2002, Greg KH wrote:
>
> Did 2.5.44 work, but 2.5.45 not work for the printer?
Nope. That machine ran 2.5.42 (or maybe 41) before that, and failed
similarly. I updated it to BK as of an hour ago, and since it still failed
I did the report. So it's been going on for at least a few weeks.
Enabling USB debug doesn't show much more. I get
Oct 31 22:51:54 tove kernel: drivers/usb/core/hcd.c: (no bus?): hcd_unlink_urb
fail -22
Oct 31 22:51:54 tove kernel: drivers/usb/host/ohci-dbg.c: UNLINK c17d64bc
dev:4,ep=2-I,BULK,flags:0,len:0/8192,stat:-2
Oct 31 22:51:54 tove kernel: drivers/usb/core/hcd.c: 00:02.2: wait for
giveback urb c17d64bc
Oct 31 22:51:54 tove kernel: drivers/usb/core/hcd.c: giveback urb c17d64bc
status -2 len 0
..
Oct 31 22:58:47 tove kernel: drivers/usb/core/message.c: usb_control/bulk_msg:
timeout
Oct 31 22:58:47 tove kernel: drivers/usb/host/ohci-dbg.c: UNLINK dc8e2b1c
dev:4,ep=0-I,CTRL,flags:0,len:0/1,stat:-2
Oct 31 22:58:47 tove kernel: drivers/usb/core/hcd.c: 00:02.2: wait for
giveback urb dc8e2b1c
and clearly the "wait for giveback" never happens. (There are some other
messages too, but they seem to be for the storage devices that do work)
dev:4 is the printer:
T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=04b8 ProdID=0005 Rev= 1.00
S: Manufacturer=EPSON
S: Product=USB Printer
S: SerialNumber=Rb-JSM010501122854
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
in case you care (this was from /proc/bus/usb/devices, which works fine
_until_ the point where the printer timeout happens, at which point it
stops working).
Linus
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