Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serialwrites" causes gobi_loader to hang

[Alan Cox]

> 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.
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