Messages in this thread | | | Date | Thu, 19 Feb 2004 10:14:33 -0300 (BRT) | From | Marcelo Tosatti <> | Subject | Re: 2.4.25 yenta problem and small fix/workaround |
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On Thu, 19 Feb 2004, Silla Rizzoli wrote:
> Hello! > Inserting a PC Card in my laptop (IMB R40 2681) with kernel 2.4.25 results in > the following message: > > Feb 19 11:10:16 [kernel] cs: socket d603e000 voltage interrogation timed out > > This sometimes happens with 2.6.x too, but issuing cardctl insert 0 usually > solves the problem, however in this case it didn't. I tried to modify all the > pcmcia_core module parameters but to no avail, the socket remained dead. > > Examining the sources I noticed that 2.4.25 introduced this three line check; > I suppose that the socket state read returns a valid state and > cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST) is not executed. > Removing the check and executing the last line regardless fixes the problem. > I am probably experiencing a hardware bug limited to my laptop, but I'm > posting this small patch here just in case someone has the same problem. > > Regards, > Silla Rizzoli > > > > --- ./drivers/pcmcia/yenta.c.orig 2004-02-19 11:44:29.000000000 +0100 > +++ ./drivers/pcmcia/yenta.c 2004-02-19 11:43:45.000000000 +0100 > @@ -676,9 +676,6 @@ > exca_writeb(socket, I365_GENCTL, 0x00); > > /* Redo card voltage interrogation */ > - state = cb_readl(socket, CB_SOCKET_STATE); > - if (!(state & (CB_CDETECT1 | CB_CDETECT2 | CB_5VCARD | > - CB_3VCARD | CB_XVCARD | CB_YVCARD))) > > cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); > }
Hi Silla,
Unfortunately this change fixes other problems (in Acer TravelMate laptops for one I know, maybe others).
Someone needs to figure out a way for detection to work properly on both setups. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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