Re: [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk

From: Sergei Shtylyov
Date: Sat Dec 20 2014 - 07:32:52 EST


Hello.

On 12/20/2014 12:11 PM, Jeremiah Mahler wrote:

If a USB serial device driver, which is built using the generic serial
driver, is unplugged while there is an active program using the device,

Driver is unplugged? :-)

it will spam the logs with -EPROTO (71) messages as it attempts to
retry.

Most serial usb drivers (metro-usb, pl2303, mos7840, ...) only output
these messages for debugging. The generic driver treats these as
errors.

Change the default output for the generic serial driver from error to
debug.

Signed-off-by: Jeremiah Mahler <jmmahler@xxxxxxxxx>

[...]

WBR, Sergei

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