Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Mike Isely
On Mon, 18 Jan 2010, Andy Walls wrote: > On Mon, 2010-01-18 at 14:18 -0600, Mike Isely wrote: > > On Mon, 18 Jan 2010, Andy Walls wrote:> > > > Any definitive confirmation anyone can give on any of these drivers > > > would be helpful and would save me some time. > > > Mike, > > Great! Thank

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Andy Walls
On Mon, 2010-01-18 at 14:18 -0600, Mike Isely wrote: > On Mon, 18 Jan 2010, Andy Walls wrote:> > > Any definitive confirmation anyone can give on any of these drivers > > would be helpful and would save me some time. Mike, Great! Thank you for the answers. If you would indulge one more (compo

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Mike Isely
See below... On Mon, 18 Jan 2010, Andy Walls wrote: > Hi, > > I am going to add locking to the cx25840 module register reads and > writes because I now have a case where a workqueue, a userpace, and/or > the cx25840 firmware loading workqueue could contend for access to the > CX2584x or equival

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Andy Walls
On Mon, 2010-01-18 at 18:29 +0100, Hans Verkuil wrote: > On Monday 18 January 2010 17:52:43 Andy Walls wrote: > > On Mon, 2010-01-18 at 11:16 +0100, Hans Verkuil wrote: > > > On Monday 18 January 2010 06:19:28 Andy Walls wrote: > > I'll have to audit the underlying drivers to check if their mast

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Hans Verkuil
On Monday 18 January 2010 17:52:43 Andy Walls wrote: > On Mon, 2010-01-18 at 11:16 +0100, Hans Verkuil wrote: > > On Monday 18 January 2010 06:19:28 Andy Walls wrote: > > > Hi, > > > > > > I am going to add locking to the cx25840 module register reads and > > > writes because I now have a case whe

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Andy Walls
On Mon, 2010-01-18 at 11:16 +0100, Hans Verkuil wrote: > On Monday 18 January 2010 06:19:28 Andy Walls wrote: > > Hi, > > > > I am going to add locking to the cx25840 module register reads and > > writes because I now have a case where a workqueue, a userpace, and/or > > the cx25840 firmware loadi

Re: Do any drivers access the cx25840 module in an atomic context?

2010-01-18 Thread Hans Verkuil
On Monday 18 January 2010 06:19:28 Andy Walls wrote: > Hi, > > I am going to add locking to the cx25840 module register reads and > writes because I now have a case where a workqueue, a userpace, and/or > the cx25840 firmware loading workqueue could contend for access to the > CX2584x or equivalen