Re: Problem in First-Patch-Tutorial

2017-03-12 Thread mhornung . linux
Hi, On Sun, 12. Mar 17:58, SIMRAN SINGHAL wrote: > On Sun, Mar 12, 2017 at 5:57 PM, SIMRAN SINGHAL > wrote: > > On Sun, Mar 12, 2017 at 5:55 PM, Lino Sanfilippo > > wrote: > >> Hi, > >> > >> On 12.03.2017 13:15, SIMRAN SINGHAL wrote: > >>> On Sun, Mar 12, 2017 at 4:04 PM, Varsha Rao wrote: > >>

drivers: staging: most: Locking question

2016-07-18 Thread mhornung . linux
Hello, I have some questions about the locking techniques used inside file drivers/staging/most/hdm-usb/hdm_usb.c. The one and only call to function free_anchored_buffers is locked by a Mutex: ... mutex_

Re: list etiquette

2016-06-07 Thread mhornung . linux
Hi Tobin, On Mon, 06. Jun 18:53, Tobin Harding wrote: > LKML list etiquette question. > > When asking a [simple] question that receives an suitable answer is it correct > etiquette to reply with a thank you email or is this just adding noise to the > list? Someone reading your question (and the

Re: Timing issues with RPi GPIO misc char driver

2014-09-30 Thread mhornung . linux
On Sat, 20. Sep 14:52, mhornung.li...@gmail.com wrote: Hello again, > Hello, > > I am trying to do my first driver, a Raspberry Pi misc char driver for > controlling 433 MHz power plugs. The transmitter is a 433 MHz radio module > connected to one of the RPi's GPIOs, the receiver is a 433 MHz pow

Re: Timing issues with RPi GPIO misc char driver

2014-09-21 Thread mhornung . linux
Hi Peter, On Sun, 21. Sep 13:25, Peter Teoh wrote: > A few possible problem (sorry, I am not sure): > Thank you very much for your reply. As agreed upon, I am adding the mailing list to my reply. > GPIO 4 is the GPCLK0, for output only? I don't think so. According to the BCM2835 ARM Peripheral

Timing issues with RPi GPIO misc char driver

2014-09-20 Thread mhornung . linux
Hello, I am trying to do my first driver, a Raspberry Pi misc char driver for controlling 433 MHz power plugs. The transmitter is a 433 MHz radio module connected to one of the RPi's GPIOs, the receiver is a 433 MHz power plug. The power plug expects a specific protocol which is normally send by a

Re: Delay in Printk Messages.

2014-06-28 Thread mhornung . linux
Hello Arun Kumar, On Sat, 28. Jun 23:03, Arun Kumar wrote: > I am able to read my printk messages in the kernel buffer only after > unloading the module.. > Is there some reason or configuration behind this. > > I used a simple kernel module with only init and exit functions, and > after loadin