a question about dma_set_mask function

Hello, I have a question about DNA (I was reading DMA-API-HOWTO.txt ). You know regarding DMA, there is cpu virtual address, cpu physical address and bus address for the device. Bus address is converted to cpu physical address usi

RE: a question about dma_set_mask function

Further reading down the document, I realized the returned DMA address (=bus address) is used for setting the dma descriptors or the device register so that the address value is used for actual DMA. But I'm still confused for cases of using iommu. When the iommu exists for the device, does th

Re: MTD: How to get actual image size from MTD partition

On Thu, 22 Jul 2021 at 02:24, Richard Weinberger wrote: > > - Ursprüngliche Mail - > >> But let me advertise ubiblock a second time. > > Sorry, I could not understand about the ubiblock request. Is it > > possible to elaborate little more ? > > We are already using squashfs on top of our U

Re: My effort to learn Linux kernel development

I normally learn the kernel on weekends. Reading R. Love and practicing by coding what you learn is the best way. Also, trying to submit simple patches on some free time is a good way , meeting Greg Kroah and Shuan, they are fantastic people to learn from. Kind regards, Jules *..* On Wed, 21 J

Re: My effort to learn Linux kernel development

On Thu, 22 Jul 2021, Jules Irenge wrote: > I normally learn the kernel on weekends. Reading R. Love and > practicing by coding what you learn is the best way. Also, trying to > submit simple patches on some free time is a good way , meeting Greg > Kroah and Shuan, they are fantastic people to lear

Re: My effort to learn Linux kernel development

On Thu, Jul 22, 2021 at 8:26 PM Robert P. J. Day wrote: > > On Thu, 22 Jul 2021, Jules Irenge wrote: > > > I normally learn the kernel on weekends. Reading R. Love and > > practicing by coding what you learn is the best way. Also, trying to > > submit simple patches on some free time is a good way

Re: My effort to learn Linux kernel development

On Fri, Jul 23, 2021 at 04:54:41AM +0530, Amit Kumar wrote: > On Thu, Jul 22, 2021 at 8:26 PM Robert P. J. Day > wrote: > > > > On Thu, 22 Jul 2021, Jules Irenge wrote: > > > > > I normally learn the kernel on weekends. Reading R. Love and > > > practicing by coding what you learn is the best way