OT: Who Writes Linux and Open Source Software?

2023-03-03 Thread Gregory Nutt
Interesting: https://news.slashdot.org/story/23/02/26/1950212/who-writes-linux-and-open-source-software I've often complained on list about the near disappearance of individual contributors to the OS.  It was created by individual contributors and most of the early, critical designs came

RE: Help me understand file open/close behaviours?

2023-03-03 Thread Tim Hardisty
>From: Gregory Nutt >Sent: 03 March 2023 19:03 >To: dev@nuttx.apache.org >Subject: Re: Help me understand file open/close behaviours? > >On 3/3/2023 12:56 PM, Gregory Nutt wrote: >> On 3/3/2023 12:36 PM, Nathan Hartman wrote: >>> On Fri, Mar 3, 2023 at 1:07 PM Tim Hardisty wrote: The bug I

Re: Help me understand file open/close behaviours?

2023-03-03 Thread Gregory Nutt
On 3/3/2023 12:56 PM, Gregory Nutt wrote: On 3/3/2023 12:36 PM, Nathan Hartman wrote: On Fri, Mar 3, 2023 at 1:07 PM Tim Hardisty wrote: The bug I thought I had in a driver I'm developing (well, one of them!) appears to be related to file closing. - I have a related example-type app I'm

RE: Help me understand file open/close behaviours?

2023-03-03 Thread Tim Hardisty
>From: Nathan Hartman >Sent: 03 March 2023 18:36 >To: dev@nuttx.apache.org >Subject: Re: Help me understand file open/close behaviours? > >On Fri, Mar 3, 2023 at 1:07 PM Tim Hardisty wrote: >> The bug I thought I had in a driver I'm developing (well, one of them!) >appears to be related to file

Re: Help me understand file open/close behaviours?

2023-03-03 Thread Gregory Nutt
On 3/3/2023 12:36 PM, Nathan Hartman wrote: On Fri, Mar 3, 2023 at 1:07 PM Tim Hardisty wrote: The bug I thought I had in a driver I'm developing (well, one of them!) appears to be related to file closing. - I have a related example-type app I'm using to exercise and check the driver. It

Re: Help me understand file open/close behaviours?

2023-03-03 Thread Nathan Hartman
On Fri, Mar 3, 2023 at 1:07 PM Tim Hardisty wrote: > The bug I thought I had in a driver I'm developing (well, one of them!) > appears to be related to file closing. > > - I have a related example-type app I'm using to exercise and check the > driver. It opens 2 "files" (O-RDONLY) to read data

Help me understand file open/close behaviours?

2023-03-03 Thread Tim Hardisty
Hi all, The bug I thought I had in a driver I'm developing (well, one of them!) appears to be related to file closing. - I have a related example-type app I'm using to exercise and check the driver. It opens 2 "files" (O-RDONLY) to read data from the device driver - I have enabled

Re: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Tomek CEDRO
On Fri, Mar 3, 2023 at 5:23 PM Alan C. Assis wrote:> > Both are supported. ACK :-) Update request to mark "FULLY SUPPORTED" has been sent :-) -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info

Re: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Alan C. Assis
Both are supported. On 3/3/23, Tomek CEDRO wrote: > On Fri, Mar 3, 2023 at 5:10 PM Alan C. Assis wrote: >> Hi Tomek, >> Nice finding. Actually NuttX on RISC-V is already used on commercial >> products from at least one big company, so I suggest it should be >> Fully Supported. > > ACK! Is both

Re: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Tomek CEDRO
On Fri, Mar 3, 2023 at 5:18 PM Tomek CEDRO wrote: > > On Fri, Mar 3, 2023 at 5:10 PM Alan C. Assis wrote: > > Hi Tomek, > > Nice finding. Actually NuttX on RISC-V is already used on commercial > > products from at least one big company, so I suggest it should be > > Fully Supported. > > ACK! Is

Re: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Tomek CEDRO
On Fri, Mar 3, 2023 at 5:10 PM Alan C. Assis wrote: > Hi Tomek, > Nice finding. Actually NuttX on RISC-V is already used on commercial > products from at least one big company, so I suggest it should be > Fully Supported. ACK! Is both riscv32 and riscv64 ISA supported or only one of them? :-) --

Re: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Alan C. Assis
Hi Tomek, Nice finding. Actually NuttX on RISC-V is already used on commercial products from at least one big company, so I suggest it should be Fully Supported. BR, Alan On 3/3/23, Tomek CEDRO wrote: > Hello world :-) > > There is a platform support update request on RISC-V tech mailinglists

Re: Fwd: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Sebastien Lorquet
Hi, ESP32-C3 worked perfectly out-of-the-box for me so I guess it is "fully supported" Sebastien Le 03/03/2023 à 15:48, Tomek CEDRO a écrit : Hello world :-) There is a platform support update request on RISC-V tech mailinglists (see forward below).. on the referenced site I can see that

Fwd: [allmem] Ask for Help: Software Ecosystem Status for RISC-V (March 2023)

2023-03-03 Thread Tomek CEDRO
Hello world :-) There is a platform support update request on RISC-V tech mailinglists (see forward below).. on the referenced site I can see that NuttX is marked "IN PROGRESS".. but I know some chips can now run NuttX on RV cores pretty well (I used ESP32-C3 myself and heard that Microchip

RE: VS Code debugging

2023-03-03 Thread Tim Hardisty
Thanks Bartok. Seems, as usual, I am Mr. DumbHead as I am already using a CortexA5.svd file and do, indeed, see Cortex registers. But IO am not 100% convinced the svd is totally right so I'm trying to track one down for the SAMA5D2 family. What I can't do is trace the cause of an exception.

Re: Socketcan reordered packets and packet stalls

2023-03-03 Thread Mårten Svanfeldt
Thanks for your input Peter, > The IMXRT SocketCAN driver is based on the S32K1XX driver which had limited > amount of mailboxes. > So they had to be cleared as quick as possible to make sure we don't drop > packets if all mailboxes get full. I did get that from the git history, however I hope

Socketcan reordered packets and packet stalls

2023-03-03 Thread Peter van der Perk
Hi Marten, The IMXRT SocketCAN driver is based on the S32K1XX driver which had limited amount of mailboxes. So they had to be cleared as quick as possible to make sure we don't drop packets if all mailboxes get full. On the IMXRT it's different since in non-FD mode you've got a lot of

Socketcan reordered packets and packet stalls

2023-03-03 Thread Mårten Svanfeldt
Hello, We are using Nuttx and its SocketCAN support (on top of iMXRT hardware), but have run into some problems related to packet reordering and also possible soft-locks/stalls in the rx side. The symptoms we have is that the upper layer, which is a isotp implementation, receives packets