Re: [PATCH] tty: serial: men_z135_uart: Fix driver for changes in hardware
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2014-09-10 00:26:37
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2014-09-10 00:26:37
Also in:
lkml
On Tue, Sep 09, 2014 at 07:56:15AM +0200, Johannes Thumshirn wrote:
On Mon, Sep 08, 2014 at 04:17:33PM -0700, Greg Kroah-Hartman wrote:quoted
quoted
@@ -118,6 +117,10 @@ static int align; module_param(align, int, S_IRUGO); MODULE_PARM_DESC(align, "Keep hardware FIFO write pointer aligned, default 0"); +static int rx_timeout; +module_param(rx_timeout, uint, S_IRUGO); +MODULE_PARM_DESC(rx_timeout, "RX timeout");Why add a module parameter? Who will know to set this? And to what value?There will be a user manual describing the parameter. It's like the rxlvl and txlvl parameters, you'll have to read the manual if you need other values than the default ones.
Ugh, but module parameters are for all devices in the system of this type, which is why we try not to have them at all anymore. And I don't like the other module parameters either :( But it's an odd-one-off driver, I guess we can live...
quoted
And what about this driver working on old hardware, didn't you just break this?No. Currently the hardware is in a testing stage at only one customer and it is an IP-Core inside a FPGA, so it can be (and already is) updated. So we can be save to assume this is O.K.
Ok, can you please resend this, it's gone from my queue now. greg k-h