Rockbox mail archiveSubject: Re: Classic holdswitch polling
Re: Classic holdswitch polling
From: Michael Sevakis <jethead71_at_comcast.net>
Date: Sat, 10 Mar 2012 16:20:19 -0500
> Sorry, i didn't explain it properly, was referring to protect I2C read and
That's a very bad thing to do. I2C shouldn't keep interrupts masked that
> This is a small modification affecting only target code but not valid for
> time to transfer 1 byte + ACK (9 bits total) = 43-45 usecs
Like I said: horrible thing to do. I think we agree, yay?
A queueable driver can make problems like that disappear.
Page was last modified "Jan 10 2012" The Rockbox Crew