02:33 <GuineaWheek[m]> just spent way too long trying to figure out why my device's usb wouldn't enumerate only to find out that the fix was in a PR branch that has been left open for 8 months: https://github.com/stm32-rs/synopsys-usb-otg/pull/25

09:14 <Rustnoob[m]> seems enabled...will check at home anyway

09:40 <Rustnoob[m]> Hi guys, I think that this topi has been already treated, but i need a refresh. I have to verify a bootloader with signature and I need to read it from the flash memory as a slice of u8 (&[u8]) so coming from C i know that I can point to an address of flash with a pointer and get the value, which is a good method ( safe or unsafe too ) to obtain the same result in embedded Rust? Thanks!

09:40 <Rustnoob[m]> * Hi guys, I think that this topic has been already treated, but i need a refresh. I have to verify a bootloader with signature and I need to read it from the flash memory as a slice of u8 (&\[u8\]) so coming from C i know that I can point to an address of flash with a pointer and get the value, which is a good method ( safe or unsafe too ) to obtain the same result in embedded Rust? Thanks!

10:57 <ryan-summers[m]> Hmm, you could generate a [slice::from_raw_parts](https://doc.rust-lang.org/core/slice/fn.from_raw_parts.html), but perhaps that might violate pointer aliasing rules

10:58 <ryan-summers[m]> But pointer aliasing rules are weird and its not entirely clear to me if this is a violation of them

10:59 <ryan-summers[m]> s/aliasing/provenance/

10:59 <ryan-summers[m]> s/from_raw_parts/from\_raw\_parts/, s/aliasing/provenance/

11:03 <JamesMunns[m]> If you're in the bootloader, and reading the app section, it's pretty clearly fine. Reading read-only flash is proooooobably fine, less so than aliasing RAM which might be mutable.

11:04 <whitequark[cis]> there is always the option for an assembly blob

11:04 <M9names[m]> you're unlikely to have a ref mut into flash

11:05 <JamesMunns[m]> If your flash is memory mapped, it's probably fine to do from_raw_parts, as long as it isn't live if you ever later erase/write the flash.

12:21 <Rustnoob[m]> <JamesMunns[m]> "If you're in the bootloader, and..." <- Exactly what i need! Read bootloader flash in a slice flavour!

13:37 <haobogu[m]> Hello everyone, is there any existing driver of FT3168 touch controller in the community?

13:39 <haobogu[m]> If there's no, I'd like to implement one.

13:55 <JamesMunns[m]> Looking at https://github.com/rust-embedded/awesome-embedded-rust?tab=readme-ov-file, there's one for the Ft6x36, not sure how similar they are across families

14:01 <haobogu[m]> Okay, thanks James!

14:01 <haobogu[m]> I'm checking it out