"USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang
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From: Alan Cox on 22 Feb 2010 16:30 > Yes, but does the tty interface guarantee that the data of one write call is > sent as one packet to the device? Not usually but it can do. At least the core tty code supports this for suitable ldiscs. > If I understood this correctly, it seems the changes have caused it to now > concatenate short writes into one packet, which the device doesn't seem to > like. If the device wants exactly bounded packets then for the firmware loader tty is probably the wrong interface. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |